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

SR 14

Good

Over: OVER LYCOMING CREEK

2 MILES NORTH OF RALSTON, Lycoming, PA

Built 1930 Load: 48.1 t ADT: 2,552

S.R. 4012

Good

Over: OVER BLACKS CREEK

6 MI WEST OF BUTTONWOOD, Lycoming, PA

Built 1995 Load: 48.1 t ADT: 72

LITTLE BEAR ROAD

Good

Over: LITTLE BEAR CREEK

2 MI SE OF SR 87, Lycoming, PA

Built 1997 Load: 48.1 t ADT: 15

SR 446-PA 446

Good

Over: WESTERN NY & PA RR

1 MI S LARABEE, McKean, PA

Built 1986 Load: 48.1 t ADT: 1,771

BRIDGE 812 T-506

Good

Over: OVER SHENANGO RIVER BR.

BLAHUT RD. HEMPFIELD TWP., Mercer, PA

Built 1995 Load: 48.1 t ADT: 272

BRIDGE 1210 T-872

Good

Over: OVER DUGAN RUN

KERRSTOWN ROAD MILL CRK., Mercer, PA

Built 1895 Load: 48.1 t ADT: 8

COOPERS GAP ROAD

Good

Over: TEA CREEK

1/2 MI NW OF SR 4006, Mifflin, PA

Built 1930 Load: 48.1 t ADT: 35

PA 940

Good

Over: TOBYHANNA CREEK

CARBON CO./MONROE CO.LINE, Monroe, PA

Built 1993 Load: 48.1 t ADT: 1,971

NORTH WALES ROAD

Good

Over: SEPTA 3144D09

1MI.S N.WALES BORO 3144D9, Montgomery, PA

Built 1993 Load: 48.1 t ADT: 7,591

DAVISVILLE ROAD

Good

Over: PENNYPACK CREEK

UPPER MORELAND 3259-E05, Montgomery, PA

Built 1996 Load: 48.1 t ADT: 14,616

DAVISVILLE ROAD

Good

Over: NORFOLK SOUTHERN

S OF T-PIKE 25G13/3259F5, Montgomery, PA

Built 1996 Load: 48.1 t ADT: 14,616

MALL BOULEVARD

Good

Over: ABRAMS CREEK

300FT NW OF US202 3366-J7, Montgomery, PA

Built 1961 Load: 48.1 t ADT: 10,200

I-80 EBL

Good

Over: OVER CHILLISQUAQUE CREEK

6.7 MI. W DANVILLE EXIT, Montour, PA

Built 1962 Load: 48.1 t ADT: 12,929

SR 1003

Good

Over: CHILLISQUAQUE CREEK

1 MI N WASHINGTONVILLE, Montour, PA

Built 1993 Load: 48.1 t ADT: 443

SR 1007

Good

Over: OVER WARRIOR RUN CREEK

5 MI N OF MCEWENSVILLE, Northumberland, PA

Built 1995 Load: 48.1 t ADT: 1,822

T-672 (Hill Road)

Good

Over: Glade Run

LEWIS TOWNSHIP, Northumberland, PA

Built 1900 Load: 48.1 t ADT: 50

US 11&15; SR 0011

Good

Over: HUNTERS RUN

3 MI. S. OF LIVERPOOL, Perry, PA

Built 1951 Load: 48.1 t ADT: 16,614

SR 1011

Good

Over: MUNDY BROOK

1 MI SE GENESEE, Potter, PA

Built 1991 Load: 48.1 t ADT: 513

WALNUT HOLLOW

Good

Over: MAHANTONGO CREEK

EAST OF SR 125 W.OF HAAS, Schuylkill, PA

Built 1973 Load: 48.1 t ADT: 200

T-837 (TUNNEL RD)

Good

Over: TRIB. TO SCHUYLKILL R.

INTERS. WITH T-714, Schuylkill, PA

Built 1965 Load: 48.1 t ADT: 135

US 30

Good

Over: TWO MILE RUN

1.5 MI.E.OF JENNERSTOWN, Somerset, PA

Built 1946 Load: 48.1 t ADT: 4,814

T825 SHAW MINES RD

Good

Over: CASSELMAN RIVER

1 MI.S.OF MEYERSDALE, Somerset, PA

Built 1987 Load: 48.1 t ADT: 1,130

SR 249

Good

Over: OVER CROOKED CREEK

1.5 MI. N OF LITTLE MARSH, Tioga, PA

Built 1993 Load: 48.1 t ADT: 1,104

LEFT ASAPH ROAD

Good

Over: LEFT ASAPH RUN

800 W OF RIGHT ASAPH RD, Tioga, PA

Built 2002 Load: 48.1 t ADT: 25

WHITE DEER CRK RD

Good

Over: SAND SPRING RUN

500 FT SOUTH OF SR 1010, Union, PA

Built 1995 Load: 48.1 t ADT: 25

DUNBAR BRIDGE T320

Good

Over: RACCOON CREEK

@ T843/T700 INTERSECTION, Washington, PA

Built 1889 Load: 48.1 t ADT: 15

T-680 Sportsman

Good

Over: PA TPK (I-76)

NEW STANTON REST AREA, Westmoreland, PA

Built 1939 Load: 48.1 t ADT: 240

T-959 SCHULTZ RD

Good

Over: NINE MILE RUN

BTW SR 0982 & T952, Westmoreland, PA

Built 2001 Load: 48.1 t ADT: 1,300

SR 1004(LR 39032)

Good

Over: LEHIGH CANAL

394 FT.E.OF RACE ST BR, Lehigh, PA

Built 1997 Load: 48.1 t ADT: 10,691

I-176 (SB)

Good

Over: SR 2089 NB (RAMP U)

I-176 SB OVER SR2089 NB, Berks, PA

Built 1995 Load: 48.1 t ADT: 5,304

SR 0081 I-81 NB

Good

Over: ASH STREET

I-81 NB OVER ASH STREET, Lackawanna, PA

Built 1996 Load: 48.1 t ADT: 31,673

SR 1055

Good

Over: CRABTREE CREEK

SALEM TOWNSHIP, Westmoreland, PA

Built 1997 Load: 48.1 t ADT: 796

SR15 NB

Good

Over: OVER T-811 & BECK RUN

1 MILE NORTH BUTTONWOOD, Lycoming, PA

Built 1998 Load: 48.1 t ADT: 6,017

SR 8 RYND FARM

Good

Over: OVER OIL CREEK

CORNPLANTER TOWNSHIP, Venango, PA

Built 1998 Load: 48.1 t ADT: 2,351

US 219 NBL

Good

Over: ACCESS RD & BLUE LICK CR

1.5 MI.S OF MEYERSDALE, Somerset, PA

Built 1998 Load: 48.1 t ADT: 1,861

SR 1011 DRAKE WELL

Good

Over: OIL CREEK

DRAKE WELL PARK ROAD, Venango, PA

Built 1999 Load: 48.1 t ADT: 173

SR 4001(LR 45086)

Good

Over: TUNKHANNOCK CREEK

KUHENBEAKER, Monroe, PA

Built 1999 Load: 48.1 t ADT: 2,724

RAMP F (SB)

Good

Over: OPEN GROUND(ACCESS ROAD)

(BRI) RAMP F 3591G01, Philadelphia, PA

Built 1999 Load: 48.1 t ADT: 8,697

SR1015

Good

Over: BUFF & PITT RR

GAME RESERVE, Butler, PA

Built 1999 Load: 48.1 t ADT: 284

SR 1021

Good

Over: OVER BRIAR CREEK

BORO OF BERWICK, Columbia, PA

Built 1999 Load: 48.1 t ADT: 916

SR 322-US 322 E.B.

Good

Over: SR 4006

2 MI NW OF MILROY, Mifflin, PA

Built 1999 Load: 48.1 t ADT: 8,394

WEST 6TH STREET

Good

Over: OVER SR 4034

CITY OF ERIE, Erie, PA

Built 1998 Load: 48.1 t ADT: 7,131

JEFFERSON AV T-600

Good

Over: US 222

JEFFERSON AVE.T600;SR3042, Berks, PA

Built 2000 Load: 48.1 t ADT: 2,378

SR 0021

Good

Over: WEST RUN

CENTER TOWNSHIP, Greene, PA

Built 2000 Load: 48.1 t ADT: 2,424

SR 3003

Good

Over: BRANCH OF BUFFALO CREEK

.5MI.E.OF PLEASANT GROVE, Union, PA

Built 2000 Load: 48.1 t ADT: 448

SR 3017

Good

Over: TRB W.BRH.LTL CONEST.CK

.5 MI. N.OF LETORT, Lancaster, PA

Built 2001 Load: 48.1 t ADT: 2,020

SR 99-I 99

Good

Over: ROCKVIEW RD TR SPRING CR

3.8 MI E.OF STATE COLLEGE, Centre, PA

Built 2001 Load: 48.1 t ADT: 12,128

SR 99-I 99

Good

Over: ROCKVIEW RD TR SPRING CR

3.8 MI.E.OF STATE COLLEGE, Centre, PA

Built 2001 Load: 48.1 t ADT: 12,501

SR 4013

Good

Over: ENLOW FORK WHEELING CK.

MORRIS @ E.FINLEY TWP., Greene, PA

Built 2000 Load: 48.1 t ADT: 299

PA 31 (LR 49)

Good

Over: PTC B-438 MP 111.96

0.1 MI.EAST OF SOMERSET, Somerset, PA

Built 2000 Load: 48.1 t ADT: 4,716

Showing 18,551-18,600 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.