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-389 CTY BR # 07

Fair

Over: BLACK RUN

0.8 MI. NW OF MAZEPPA, Union, PA

Built 1936 Load: 24.5 t ADT: 228

T-522 (CTY BR # 3)

Fair

Over: WHITE DEER CREEK

0.2 MI. NE OF WHITE DEER, Union, PA

Built 1974 Load: 24.5 t ADT: 60

SR 80 EB

Fair

Over: SR 38

SCRUBGRASS TOWNSHIP, Venango, PA

Built 1965 Load: 24.5 t ADT: 9,778

SR 4005

Fair

Over: HARMON CREEK

JEFFERSON & HANOVER TWPS., Washington, PA

Built 1942 Load: 24.5 t ADT: 254

NOTTINGHAM BRIDGE

Fair

Over: MINGO CREEK TRIBUTARY

150 SOUTH OF SR 1016, Washington, PA

Built 1950 Load: 24.5 t ADT: 400

MT PLEASANT STREET

Fair

Over: JACKS RUN

BTW S URANIA & S MAIN, Westmoreland, PA

Built 1983 Load: 24.5 t ADT: 4,000

SR 0307 TR 307

Fair

Over: BUTTERMILK CREEK

FALLS TWP 100 S SR 2023, Wyoming, PA

Built 1924 Load: 24.5 t ADT: 2,788

PA 462 E.B.

Fair

Over: US 30; SR 0030

2 MI. S.W. OF WEST YORK, York, PA

Built 1969 Load: 24.5 t ADT: 17,454

SR 2087

Fair

Over: EAST BRANCH CODORUS CR

2 MILE EAST OF LOGANVILLE, York, PA

Built 1934 Load: 24.5 t ADT: 579

SR 4001

Fair

Over: WILLIS RUN

1 MI SOUTH OF US30, York, PA

Built 1941 Load: 24.5 t ADT: 9,955

SUNNYSIDE RD

Fair

Over: CODORUS CREEK

CDRS CR-N CDRS/JACKSON TP, York, PA

Built 1959 Load: 24.5 t ADT: 158

WINTERS ROAD

Fair

Over: FISHING CREEK

1.5 MI EAST OF WINDSOR, York, PA

Built 1996 Load: 24.5 t ADT: 100

SOUTH PENN STREET

Fair

Over: CODORUS CREEK

S PENN; CODORUS CR; YORK, York, PA

Built 1963 Load: 24.5 t ADT: 3,931

WATER STREET

Fair

Over: N BR MUDDY CREEK

WATER ST OVER MUDDY CREEK, York, PA

Built 1981 Load: 24.5 t ADT: 300

BROAD STREET

Fair

Over: SEPTA

NORTH PHILADELPHIA3590F02, Philadelphia, PA

Built 1921 Load: 24.5 t ADT: 54,684

CHESTNUT STREET

Fair

Over: INTERSTATE 95;AND RAMPS

PENNS LAND TUN.3590H09, Philadelphia, PA

Built 1975 Load: 24.5 t ADT: 867

18th Street

Fair

Over: Penn Ctr Undrgrnd St Sys

N of Market Street 28E12, Philadelphia, PA

Built 1957 Load: 24.5 t ADT: 11,000

I676 US30 PATCO

Fair

Over: DEL RIV I-95 RR&ROADS

CITY OF CAMDEN, Beaver, PA

Built 1926 Load: 24.5 t ADT: 104,658

CENTER HILL RD

Fair

Over: LITTLE NESCOPECK CREEK

1/2 MI NW OF CR 38, Luzerne, PA

Built 2003 Load: 24.5 t ADT: 170

SWATARA DRIVE

Fair

Over: LITTLE SWATARA CREEK

SW OF STRAUSSTOWN, Berks, PA

Built 2007 Load: 24.5 t ADT: 50

T-320 (CO BR # 53)

Fair

Over: WALLACE BROOK

285FT SOUTH OF WEST LEROY, Bradford, PA

Built 1980 Load: 24.5 t ADT: 100

SNOW HILL ROAD

Fair

Over: TRIB. HOKENDAUQUA CREEK

EAST OF KREIDERSVILLE, Northampton, PA

Built 1980 Load: 24.5 t ADT: 250

T-800 Abex Road

Fair

Over: Quemahoning Creek

1.0 mi South of Benson, Somerset, PA

Built 1960 Load: 24.5 t ADT: 200

SAND TRAP DRIVE

Fair

Over: LANDIS CREEK

0.2 MI W OF LEWIS RD, Montgomery, PA

Built 1993 Load: 24.5 t ADT: 250

JUSTIN DRIVE

Fair

Over: SAW MILL RUN

0.1 MI E OF SHEFFIELD DR, Montgomery, PA

Built 1985 Load: 24.5 t ADT: 100

CAMBRIDGE DRIVE

Fair

Over: TRIBUTARY TO SPRING CREE

500 FT WEST OF HARTLEY RD, Dauphin, PA

Built 1990 Load: 24.5 t ADT: 200

FR 145

Fair

Over: LITTLE SALMON CREEK

4.1 MILES N OF SR 3004, Forest, PA

Built 1988 Load: 24.9 t ADT: 10

US 15 SB; SR 0015

Fair

Over: MARSH CREEK

2 MI. N. OF MARYLAND LINE, Adams, PA

Built 1963 Load: 25.4 t ADT: 9,517

SR 2006

Fair

Over: PLUM CREEK

1 MI S OF MCSHERRYSTOWN, Adams, PA

Built 1957 Load: 25.4 t ADT: 3,635

SOLOMON ROAD

Fair

Over: ROCK CREEK

4 SE OF GBURG/ROCK CREEK, Adams, PA

Built 1977 Load: 25.4 t ADT: 100

SR 8 SB

Fair

Over: 70 PAR 72 LOCAL RR

62nd Street Bridge, Allegheny, PA

Built 1960 Load: 25.4 t ADT: 6,533

RT 0008 NB SB

Fair

Over: PINE CREEK

150N.SPENCER LANE, Allegheny, PA

Built 1933 Load: 25.4 t ADT: 23,049

SR 0028 SB

Fair

Over: RAMP B

SR 28 N.B. OVER RAMP B, Allegheny, PA

Built 1963 Load: 25.4 t ADT: 41,555

RAYMOND SHAFER HW

Fair

Over: CHARTIERS CREEK

1016NB OVER CHARTIERS CRK, Allegheny, PA

Built 1965 Load: 25.4 t ADT: 32,037

RAYMOND SHAFER HW

Fair

Over: SR 4043 RED MUD HOLLOW

1 MI.NORTH OF SR 4022, Allegheny, PA

Built 1971 Load: 25.4 t ADT: 30,977

RAYMOND SHAFER HW

Fair

Over: MINGO RD

JUST N OF WEXFORD INTERCH, Allegheny, PA

Built 1972 Load: 25.4 t ADT: 38,645

SR 79 NB

Fair

Over: SR 0019

I-79 NB OVER SR 19, Allegheny, PA

Built 1976 Load: 25.4 t ADT: 33,038

GOLDEN MILE HY

Fair

Over: ABERS CREEK

85N.OF INTER.W/SR 2075, Allegheny, PA

Built 1950 Load: 25.4 t ADT: 16,638

ALPINE RD

Fair

Over: SR 0079 NB SB

300W.OF INTER.W/SR3003, Allegheny, PA

Built 1965 Load: 25.4 t ADT: 3,607

MAIN STREET

Fair

Over: MONTOUR RUN

NEAR TR 978 INT., Allegheny, PA

Built 1950 Load: 25.4 t ADT: 3,178

KUMMER RD

Fair

Over: PINE CREEK

PI08 PINE CREEK #8 N PK, Allegheny, PA

Built 1936 Load: 25.4 t ADT: 6,300

OLD ROUTE 8

Fair

Over: GOURDHEAD RUN

GH02 GOURDHEAD NO. 2, Allegheny, PA

Built 1914 Load: 25.4 t ADT: 650

KUMMER RD

Fair

Over: PINE CREEK NORTH BRANCH

PN06 PINE CREEK N. BR.#6, Allegheny, PA

Built 1935 Load: 25.4 t ADT: 406

SOUTH AIKEN AV

Fair

Over: N-S RR & EAST BUSWAY

098 S Aiken Ave Bridge, Allegheny, PA

Built 1929 Load: 25.4 t ADT: 9,821

RAMP A

Fair

Over: SR 65 SB REEDSDALE ST

RMP.A FT.DUQ.TO STADIUM, Allegheny, PA

Built 1968 Load: 25.4 t ADT: 6,456

RAMP A

Fair

Over: N &S RR CHATEAU ST 65 RP

SR 65 Marshall Ave. Inter, Allegheny, PA

Built 1971 Load: 25.4 t ADT: 4,123

SR0028 NB

Fair

Over: SR3017

CENTER HILL NO.3 NB, Armstrong, PA

Built 1970 Load: 25.4 t ADT: 6,819

SR0028 SB

Fair

Over: SR3017

CENTER HILL NO.3 SB, Armstrong, PA

Built 1970 Load: 25.4 t ADT: 6,844

SR0156

Fair

Over: LONG RUN

NORTH OF AVONMORE, Armstrong, PA

Built 1941 Load: 25.4 t ADT: 638

SR0839

Fair

Over: MAHONING CREEK

MILTON, Armstrong, PA

Built 1942 Load: 25.4 t ADT: 635

Showing 1,451-1,500 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.