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-408 (CO.BR.1)

Fair

Over: SOUTH BR. TOWANDA CREEK

0.1M NE SR 220 LADDSBURG, Bradford, PA

Built 1979 Load: 0.0 t ADT: 100

CONNECT PA263&NJ29

Fair

Over: DELAWARE River

CENTRE BR PA 26C02, Bucks, PA

Built 1926 Load: 0.0 t ADT: 4,500

SR 4004

Fair

Over: DRIFTWOOD BRANCH

2 MI E LEWIS RUN, Cameron, PA

Built 1966 Load: 0.0 t ADT: 310

T-564 WINCKLICK RD

Fair

Over: LITTLE MILL CREEK

2.2 mi W int w/ SR 949, Clarion, PA

Built 1960 Load: 0.0 t ADT: 50

T-328 CTY BR.#10

Fair

Over: ROARING CREEK

3 MI SOUTH OF CATAWISSA, Columbia, PA

Built 1865 Load: 0.0 t

SR0085

Fair

Over: SOUTH BRANCH PLUM CREEK

AMBROSE HOLLOW, Indiana, PA

Built 1959 Load: 0.0 t ADT: 2,596

T-596 NEAL RD

Fair

Over: TWO LICK CREEK

BTW T804 & SR3017, Indiana, PA

Built 1973 Load: 0.0 t ADT: 200

SR 3100 TWP RD 310

Fair

Over: SR 0080 I-80

SUGARLOAF TP 3.3M W TR 93, Luzerne, PA

Built 1965 Load: 0.0 t ADT: 142

T-424

Fair

Over: WHITE DEER HOLE CREEK

0.9 MI SE OF ELIMSPORT, Lycoming, PA

Built 1946 Load: 0.0 t ADT: 108

US 209(LR 164 ALT)

Fair

Over: US209 BUS.(SR 2012)

US209 & US209BUS.JCT., Monroe, PA

Built 1963 Load: 0.0 t ADT: 9,903

PA 940 (LR 169)

Fair

Over: PA 314 & D&LRR

POCONO SUMMIT, Monroe, PA

Built 1964 Load: 0.0 t ADT: 21,131

MONTOUR STREET

Fair

Over: MAHONING CREEK

BORO OF DANVILLE, Montour, PA

Built 1974 Load: 0.0 t ADT: 425

FEE HOLLOW ROAD

Fair

Over: WEST BRANCH COWLEY RUN

400 FT EAST OF SR 155, Potter, PA

Built 1990 Load: 0.0 t ADT: 5

I-81 NB

Fair

Over: RAUSCH CREEK

1.1 M.N.OF EXIT 104(32), Schuylkill, PA

Built 1969 Load: 0.0 t ADT: 11,804

SR 0547 TR 547

Fair

Over: SR 0081 I-81 NB & SB

HARFORD TWP OVER SR 0081, Susquehanna, PA

Built 1961 Load: 0.0 t ADT: 367

SR 1029 RANDOLF RD

Fair

Over: SR 0081 I-81

GR BEND TP 100 OVER I-81, Susquehanna, PA

Built 1961 Load: 0.0 t ADT: 1,001

SR 0040

Fair

Over: BUFFALO CREEK

BUFFALO TOWNSHIP, Washington, PA

Built 1956 Load: 0.0 t ADT: 3,797

7 TH STREET BRIDGE

Fair

Over: NORFOLK SOUTHERN RR

SEVENTH STREET BRIDGE, Westmoreland, PA

Built 1990 Load: 0.0 t ADT: 3,000

LAMBS CR ACCESS RD

Fair

Over: LAMBS CREEK

TIOGA-HAMMOND LAKES, Tioga, PA

Built 1936 Load: 0.0 t

S.R. 0031

Fair

Over: RAYSTOWN BR JUNIATA RIV.

1.8 MI.NE.OF MANNS CHOICE, Bedford, PA

Built 1933 Load: 0.9 t ADT: 4,651

T575 Covered Bridg

Fair

Over: BOBS CREEK

1.5 MI.NW.OF OSTERBURG, Bedford, PA

Built 1973 Load: 0.9 t ADT: 100

T-369 Mill Lane

Fair

Over: CLOVER CREEK

6 MI.NE.OF MARTINSBURG, Blair, PA

Built 1963 Load: 0.9 t ADT: 98

PA 53

Fair

Over: LITTLE CONEMAUGH RIVER

1.6 MILE NORTH OF US 219, Cambria, PA

Built 1965 Load: 0.9 t ADT: 4,076

PA 248 (LR163)

Fair

Over: FIRELINE CREEK

BOWMANSTOWN BORO, Carbon, PA

Built 1962 Load: 0.9 t ADT: 17,755

SR 0502 TR 502

Fair

Over: SPRING BROOK

MOOSIC BORO .3 M E TR 11, Lackawanna, PA

Built 1958 Load: 0.9 t ADT: 5,285

IRON BRIDGE RD

Fair

Over: CONESTOGA RIVER

2000 FT SW OF SR 1044, Lancaster, PA

Built 1898 Load: 0.9 t ADT: 50

SHREINER STATIONRD

Fair

Over: LITTLE CONESTOGA CREEK

600 FT WEST OF PLAZA BLVD, Lancaster, PA

Built 1873 Load: 0.9 t ADT: 500

LOG CABIN RD

Fair

Over: COCALICO CREEK

1/2 MI NORTH OF SR 272, Lancaster, PA

Built 1849 Load: 0.9 t ADT: 310

PA 33 (LR 796 NB)

Fair

Over: US 209 (LR 164 ALT) SB

7.9 MI.N.OF ROSS COMMON, Monroe, PA

Built 1963 Load: 0.9 t ADT: 11,756

I-80 EB (LR 1002)

Fair

Over: SR 3023 & POCONO CR.

I-80 OVER RIMROCK DR., Monroe, PA

Built 1963 Load: 0.9 t ADT: 24,792

I-80 WB (LR 1002)

Fair

Over: SR 3023 & POCONO CR.

I-80 OVER RIMROCK DR., Monroe, PA

Built 1963 Load: 0.9 t ADT: 23,961

I-83; SR 0083

Fair

Over: YorkRail & Codorus Creek

0.4 MI S of Exit-21 I-83, York, PA

Built 1959 Load: 0.9 t ADT: 51,452

RAYMOND SHAFER HW

Fair

Over: CLEVER RD

I-79 SB OVER CLEVER ROAD, Allegheny, PA

Built 1971 Load: 1.8 t ADT: 22,032

PA 53

Fair

Over: LITTLE CONEMAUGH RIVER

1.1 MILE SOUTH OF PA 160, Cambria, PA

Built 1965 Load: 1.8 t ADT: 4,076

T-322 C BRIDGE RD

Fair

Over: W BR SUSQUEHANNA RIVER

600 FT SOUTH OF SR 219, Clearfield, PA

Built 1873 Load: 1.8 t ADT: 135

T-536

Fair

Over: MUDDY RUN

500 FT WEST OF SR 729, Clearfield, PA

Built 1918 Load: 1.8 t ADT: 170

FRUIT HILL RDT-439

Fair

Over: POTTS RUN

1000 FT SW OF SR 3007, Clearfield, PA

Built 1909 Load: 1.8 t ADT: 45

POINT VIEW AVE.

Fair

Over: B&P RR

0.5 MILES SOUTH OF SR 322, Jefferson, PA

Built 1978 Load: 1.8 t ADT: 50

MT PLEASANT RD

Fair

Over: W BR OCTORARO CRK

1.5 MI SE OF SR 372, Lancaster, PA

Built 1878 Load: 1.8 t ADT: 340

COCALICO CREEK RD

Fair

Over: COCALICO CREEK

1500 FT EAST OF SR 272, Lancaster, PA

Built 1891 Load: 1.8 t ADT: 100

BYERLAND CHURCH RD

Fair

Over: PEQUEA CREEK

1 MI NE OF SR 324, Lancaster, PA

Built 1860 Load: 1.8 t ADT: 400

ERBS BRIDGE RD

Fair

Over: HAMMER CREEK

1 MILE NORTH OF SR 272, Lancaster, PA

Built 1887 Load: 1.8 t ADT: 400

SR 3020(LR 45073)

Fair

Over: APPENZELL CREEK

PENSYL CK. RD.@ SMILEY LA, Monroe, PA

Built 1956 Load: 1.8 t ADT: 1,155

SR 1006 (LR 48095)

Fair

Over: BUSHKILL CREEK

FILETOWN ROAD, Northampton, PA

Built 1970 Load: 1.8 t ADT: 967

US 11&15; SR 0011

Fair

Over: T508; LITTLE JUNIATA CR

DUNCANNON, Perry, PA

Built 1959 Load: 1.8 t ADT: 8,474

SR 1031

Fair

Over: SHADE CREEK

3.75 MI.NE.OF BLOUGH, Somerset, PA

Built 1939 Load: 1.8 t ADT: 648

CLARK ROAD (T-565)

Fair

Over: POTTS RUN

2500 FT NW OF SR 453, Clearfield, PA

Built 1910 Load: 2.7 t ADT: 45

T-326 CTY BR 28

Fair

Over: MUGSER RUN

5 MI SW OF CATAWISSA, Columbia, PA

Built 1905 Load: 2.7 t ADT: 50

DAVIS (CTY BR 12)

Fair

Over: ROARING CREEK

1.5 MI NW SLABTOWN, Columbia, PA

Built 1875 Load: 2.7 t ADT: 50

CREASYVILLE No 97

Fair

Over: LITTLE FISHING CREEK

1.7 MI. NORTH OF DERRS, Columbia, PA

Built 1881 Load: 2.7 t ADT: 50

Showing 1-50 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.