State profile · Above median Poor share

Pennsylvania bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Pennsylvania.

23,299
Public bridges
34.0%
Good condition
12.6%
Poor condition

Pennsylvania holds 23,299 public highway bridges (#8 of 52 by inventory) with a 12.58% Poor share (#7 of 52 by Poor share).

That is 12.6% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 46 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

23,299

Public highway bridges in Pennsylvania

Good Condition

34.0%

7,915 bridges rated 7-9

-16.0pp vs 50% benchmark

Poor Condition

12.6%

2,932 bridges whose lowest applicable component is rated 0-4

5.1pp vs national avg 7.5%

Pennsylvania vs national bridge condition

Pennsylvania - Good condition share 34.0%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Pennsylvania - Poor-condition share 41.9%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Pennsylvania in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Pennsylvania vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

23,299 8th of 54 higher than 46 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Pennsylvania

The highlighted point is Pennsylvania: 23,299 bridges and 12.58% in Poor condition, rank #46 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Pennsylvania on that same Poor-share ordering:

  • Michigan: 11,371 bridges · 11.27% Poor
  • Louisiana: 12,698 bridges · 11.48% Poor
  • Pennsylvania: 23,299 bridges · 12.58% Poor
  • Guam: 47 bridges · 12.77% Poor
  • Puerto Rico: 2,385 bridges · 13.92% Poor

The full national sortable table lives on the rankings page.

Material families in Pennsylvania

Exclusive FHWA material families across all 23,299 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Pennsylvania’s inventory

State agency holds 70.3% of the 23,299 public highway bridges filed under Pennsylvania in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Pennsylvania’s bridges were built

Pre-1950 construction accounts for 24.8% of the 23,299 bridges with a recorded original year in Pennsylvania. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Pennsylvania34%53.4%12.6%GoodFairPoor
Bridge inventory deck-condition mix - Pennsylvania (FHWA NBI)

Counties (67)

Adams 254 Allegheny 1294 Armstrong 263 Beaver 299 Bedford 417 Berks 667 Blair 338 Bradford 399 Bucks 699 Butler 378 Cambria 284 Cameron 62 Carbon 134 Centre 367 Chester 680 Clarion 172 Clearfield 292 Clinton 212 Columbia 271 Crawford 399 Cumberland 348 Dauphin 449 Delaware 387 Elk 127 Erie 442 Fayette 422 Forest 71 Franklin 294 Fulton 159 Greene 306 Huntingdon 238 Indiana 301 Jefferson 202 Juniata 169 Lackawanna 363 Lancaster 801 Lawrence 265 Lebanon 228 Lehigh 381 Luzerne 457 Lycoming 482 McKean 226 Mercer 438 Mifflin 196 Monroe 315 Montgomery 828 Montour 108 Northampton 356 Northumberland 299 Perry 183 Philadelphia 585 Pike 158 Potter 207 Schuylkill 368 Snyder 161 Somerset 454 Sullivan 119 Susquehanna 284 Tioga 429 Union 163 Venango 189 Warren 217 Washington 655 Wayne 259 Westmoreland 620 Wyoming 140 York 569

Pennsylvania vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Pennsylvania on the same metric.

MI

Michigan

11.27% top marginal rate
Structure
Progressive
Burden @ $100K
$11,371

LA

Louisiana

11.48% top marginal rate
Structure
Progressive
Burden @ $100K
$12,698
Selected

PA

Pennsylvania

12.58% top marginal rate
Structure
Progressive
Burden @ $100K
$23,299

GU

Guam

12.77% top marginal rate
Structure
Progressive
Burden @ $100K
$47

PR

Puerto Rico

13.92% top marginal rate
Structure
Progressive
Burden @ $100K
$2,385

Bridges Needing Most Attention in Pennsylvania

Six lowest-condition bridges in Pennsylvania, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

BLVD OF THE ALLIES

Poor

Over: CSX RR & BIKE TRAIL

005 Charles Anderson Brid, Allegheny, PA

Built 1938 Load: 0.0 t ADT: 21,211

TIMBERLAND AV

Poor

Over: SAW MILL RUN CREEK

113 Timberland Ave, Allegheny, PA

Built 1909 Load: 0.0 t ADT: 30

FREMONT ST

Poor

Over: GIRTYS RUN

FREMONT 25 FROM NORTH AV, Allegheny, PA

Built 1911 Load: 0.0 t ADT: 50

OLD WILLIAMPENN HW

Poor

Over: THOMPSON RUN CREEK

446002 OLD WM PENN HGWY, Allegheny, PA

Built 1900 Load: 0.0 t ADT: 300

FALLSTON BR

Poor

Over: BEAVER RIVER

004026 FALLSTON BRIDGE, Beaver, PA

Built 1884 Load: 0.0 t ADT: 6,523

ELEVENTH AVENUE ET

Poor

Over: BLOCKHOUSE RUN

423005 100 YD /13 ST INT, Beaver, PA

Built 1925 Load: 0.0 t

All Bridges in Pennsylvania

T-790 MAIN STREET

Fair

Over: TOBYS CREEK

650 FT SE OF T-655, Luzerne, PA

Built 1984 Load: 36.3 t ADT: 560

SR 15 SOUTHBOUND

Fair

Over: OVER HAGERMANS RUN

BORO OF S. WILLIAMSPORT, Lycoming, PA

Built 1970 Load: 36.3 t ADT: 10,077

SR 0015 NB

Fair

Over: 3RD ST & SEDA-COG RR

CITY OF WILLIAMSPORT, Lycoming, PA

Built 1974 Load: 36.3 t ADT: 13,764

SR 1017 #3 LYC CK.

Fair

Over: OVER LYCOMING CREEK

0.5 MI S OF HEPBURNVILLE, Lycoming, PA

Built 1967 Load: 36.3 t ADT: 5,505

SR 118

Fair

Over: LITTLE MUNCY CREEK

1.75 MI NE OF UNITYVILLE, Lycoming, PA

Built 1949 Load: 36.3 t ADT: 2,058

SR 8017-US219 RAMP

Fair

Over: PVT ROAD TUNUNGWANT CR

BRADFORD, McKean, PA

Built 1977 Load: 36.3 t ADT: 621

SR 19 PERRY HWY.

Fair

Over: OVER OTTER CREEK TRIB

COOLSPRING TOWNSHIP, Mercer, PA

Built 1930 Load: 36.3 t ADT: 2,222

SR 62 E.STATE ST.

Fair

Over: OVER SHENANGO RIVER TRIB

CITY OF HERMITAGE, Mercer, PA

Built 1948 Load: 36.3 t ADT: 6,906

SR 2004 MILBURN RD

Fair

Over: OVER MILL RUN

SPRINGFIELD TOWNSHIP, Mercer, PA

Built 1992 Load: 36.3 t ADT: 245

BRIDGE 2209 T-882

Fair

Over: OVER WOLF CREEK

CREEK ROAD WORTH TOWNSHIP, Mercer, PA

Built 1962 Load: 36.3 t ADT: 6

SR 3014

Fair

Over: JUNIATA RIVER

MCVEYTOWN, Mifflin, PA

Built 1985 Load: 36.3 t ADT: 2,506

I-80(LR794)

Fair

Over: SR 2012(LR164)

EXIT#305(48);US209 BUS., Monroe, PA

Built 1959 Load: 36.3 t ADT: 56,625

US 209 BUS (LR164)

Fair

Over: POCONO CREEK

J.SUMMERFIELD STAPLES BR., Monroe, PA

Built 1957 Load: 36.3 t ADT: 11,126

SR 3005(LR 45003)

Fair

Over: WEIR CREEK

GILBERT, Monroe, PA

Built 1948 Load: 36.3 t ADT: 1,047

GRAVEL PIKE

Fair

Over: GOSHENHOPPEN CREEK

N OF ZIEGLERV 3029C5, Montgomery, PA

Built 1954 Load: 36.3 t ADT: 5,078

SKIPPACK PIKE

Fair

Over: BRANCH SKIPPACK CREEK

W. OF PA 113 3142-E04, Montgomery, PA

Built 1966 Load: 36.3 t ADT: 13,309

MID-COUNTY EXWY-NB

Fair

Over: SCHUYLKILL EXWAY;RAMPS

CONSHOHOCKEN INTER3367J10, Montgomery, PA

Built 1977 Load: 36.3 t ADT: 53,181

MID-COUNTY EXWY.SB

Fair

Over: CHEMICAL ROAD / 3368-C5

PLYMOUTH TOWNSHIP 29G11, Montgomery, PA

Built 1974 Load: 36.3 t ADT: 43,421

OLD YORK ROAD

Fair

Over: TACONY CREEK

NORTH OF LR- 197 3370-K8, Montgomery, PA

Built 1941 Load: 36.3 t ADT: 21,032

RIDGE PIKE/3368-B5

Fair

Over: ACCESS RD;PLYMOUTH CREEK

1MI.NW OF BUTLER 3368-B05, Montgomery, PA

Built 1977 Load: 36.3 t ADT: 41,177

RIDGE PIKE

Fair

Over: SKIPPACK CREEK / 3254-B3

.5MI.TO LR 46067 20G11, Montgomery, PA

Built 1935 Load: 36.3 t ADT: 11,697

ROSE GLEN ROAD

Fair

Over: MILL CREEK

1.11 MI SE OF SR 0023, Montgomery, PA

Built 1931 Load: 36.3 t ADT: 770

LR 46094 SR 2042

Fair

Over: PA TPK (I-276)

SOUTH OF HATBORO, Montgomery, PA

Built 1954 Load: 36.3 t ADT: 14,616

I-78 WB(LR 1045)

Fair

Over: CREEK STREETS P.B.& N. E

SAUCON PARK VIADUCT, Northampton, PA

Built 1988 Load: 36.3 t ADT: 27,603

SR 2006(LR 48006)

Fair

Over: TRIB.TO SAUCON CREEK

EASTON RD.@ SR 2001, Northampton, PA

Built 1967 Load: 36.3 t ADT: 4,631

INDIAN TRAIL ROAD

Fair

Over: INDIAN CREEK

SOUTH OF PENNSVILLE, Northampton, PA

Built 1939 Load: 36.3 t ADT: 1,300

ILLICKS MILL ROAD

Fair

Over: MONOCACY CREEK

W. OF SR 3011 (CENTER ST), Northampton, PA

Built 1968 Load: 36.3 t ADT: 1,000

BRIDLE PATH ROAD

Fair

Over: MONOCACY CREEK

W. OF SR 3011 (CENTER ST), Northampton, PA

Built 1948 Load: 36.3 t ADT: 400

PA 611-NJ 94 CONN.

Fair

Over: PA 611;DEL RIVER; NS RR

PORTLAND BOROUGH, Northampton, PA

Built 1952 Load: 36.3 t ADT: 7,100

TR 147

Fair

Over: OVER SR 254

BORO OF MILTON, Northumberland, PA

Built 1971 Load: 36.3 t ADT: 9,520

SR 225

Fair

Over: OVER GAP RUN

VILLAGE OF TREVORTON, Northumberland, PA

Built 1934 Load: 36.3 t ADT: 1,585

SR 2016

Fair

Over: OVER MILLERS RUN

0.5 MI SE OF PAXINOS, Northumberland, PA

Built 1930 Load: 36.3 t ADT: 291

SR 4018

Fair

Over: OVER LITTLE SHAMOKIN CR.

7 MI SOUTHEAST OF SUNBURY, Northumberland, PA

Built 1947 Load: 36.3 t ADT: 2,891

6TH MUL PINE STS

Fair

Over: CARBON RUN

SIXTH STREET BRIDGE, Northumberland, PA

Built 1995 Load: 36.3 t ADT: 1,105

PA 17; SR 0017

Fair

Over: PANTHER CREEK

1.5 MILE W. OF ICKESBURG, Perry, PA

Built 1956 Load: 36.3 t ADT: 698

PA 34; SR 0034

Fair

Over: TRIB LITTLE JUNIATA CR

BORO OF BLOOMFIELD, Perry, PA

Built 1985 Load: 36.3 t ADT: 5,436

PA 74; SR 0074

Fair

Over: MCCABE RUN

0.5 MI. S. BRIDGEPORT, Perry, PA

Built 1937 Load: 36.3 t ADT: 2,053

PA 850; SR 0850

Fair

Over: FISHING CREEK

2 MI. W. MARYSVILLE, Perry, PA

Built 1956 Load: 36.3 t ADT: 1,548

SR 0084 I-84 WB

Fair

Over: SR 1013 CUMMINS HILL RD

WESTFALL TWP OVER SR 1013, Pike, PA

Built 1969 Load: 36.3 t ADT: 9,629

T306(CO.BR.17)

Fair

Over: TOMS CREEK

EGYPT MILLS LEHMAN TWP., Pike, PA

Built 1927 Load: 36.3 t ADT: 50

SR 6-US 6

Fair

Over: ALLEGHENY RIVER

COUDERSPORT BORO, Potter, PA

Built 1949 Load: 36.3 t ADT: 6,596

SR 872-PA 872

Fair

Over: BERGE RUN

BERGE RUN, Potter, PA

Built 1971 Load: 36.3 t ADT: 672

PA 54 (LR 290)

Fair

Over: SHENANDOAH CRK

LOST CREEK, Schuylkill, PA

Built 1976 Load: 36.3 t ADT: 1,082

I-81 SB (LR 1005)

Fair

Over: PA 125 GOOD SPRING

1 MI. N. OF EXIT 107 (33), Schuylkill, PA

Built 1969 Load: 36.3 t ADT: 10,106

PA 443/895-LR53012

Fair

Over: TRIB. LITTLE SCHUYLKILL

NEW RINGGOLD, Schuylkill, PA

Built 1964 Load: 36.3 t ADT: 6,830

T474 GAP SCHOOL RD

Fair

Over: PINE CREEK

T-474 GAP SCHOOL ROAD, Schuylkill, PA

Built 1967 Load: 36.3 t ADT: 50

CROLL RD.

Fair

Over: TOMHICKEN CREEK

SW OF NUREMBURG, Schuylkill, PA

Built 1989 Load: 36.3 t ADT: 300

MIDDLE RD

Fair

Over: NORTH BRANCH MIDDLE CRK

1MI N OF BENFER, Snyder, PA

Built 1944 Load: 36.3 t ADT: 522

SR 2013

Fair

Over: GLADDENS RUN

.6 MI.E.OF GLADDENS, Somerset, PA

Built 1949 Load: 36.3 t ADT: 263

SR 4010

Fair

Over: TWO MILE RUN

1 MI.NE.OF RANDOLPH, Somerset, PA

Built 1903 Load: 36.3 t ADT: 113

Showing 6,601-6,650 of 23,299 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.

What to do with this

Use Pennsylvania's inventory picture to drill to a county or a specific span.

  • Browse counties in Pennsylvania and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Pennsylvania Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.