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

HEMLOCK HOLLOW RD

Fair

Over: SYCAMORE RUN

432003 0.2 MI S/ RMR, Allegheny, PA

Built 1950 Load: 46.3 t ADT: 3,974

SEDGWICK ST

Fair

Over: GIRTYS RUN

SW of Grant St., Allegheny, PA

Built 1911 Load: 46.3 t ADT: 200

BACKBONE RD

Fair

Over: LITTLE SEWICKLEY CREEK

SL02 LITTLE SEW CRK # 2, Allegheny, PA

Built 1920 Load: 46.3 t ADT: 200

THOMPSON ST

Fair

Over: THOMPSON RUN

467003 TURTLE CREEKBORO, Allegheny, PA

Built 1975 Load: 46.3 t ADT: 4,000

CONGRESS STREET

Fair

Over: HARTMANS RUN PENNSYLV AV

HT04 HARTMANS RUN # 4, Allegheny, PA

Built 1986 Load: 46.3 t ADT: 801

RAMP B

Fair

Over: RAMP A

I79 NB RAMP B TO SR 65, Allegheny, PA

Built 1977 Load: 46.3 t ADT: 2,115

MIDLAND ROAD

Fair

Over: LR 278-LIBERTY ST

5000 EAST OF OHIO LINE, Beaver, PA

Built 1926 Load: 46.3 t ADT: 7,633

GEORGETOWN LN

Fair

Over: TWO MILE RUN

300 W of TUSCARAWAS RD, Beaver, PA

Built 1941 Load: 46.3 t ADT: 2,831

PA 26

Fair

Over: PINEY CREEK

.3 MI.N.SR2005 PINEY CRK., Bedford, PA

Built 1999 Load: 46.3 t ADT: 371

PA 36

Fair

Over: POTTER CREEK

WATERSIDE, Bedford, PA

Built 1992 Load: 46.3 t ADT: 4,110

I-99 / US 220 SBL

Fair

Over: SR 4009

OVER SR 4009 (CESSNA), Bedford, PA

Built 1978 Load: 46.3 t ADT: 5,530

SR 2002

Fair

Over: WILSON RUN

.5 MI.E.OF CHANNEYSVILLE, Bedford, PA

Built 1941 Load: 46.3 t ADT: 15

SR 2007

Fair

Over: BRUSH CREEK

1.5 MI.E.OF CLEARVILLE, Bedford, PA

Built 1961 Load: 46.3 t ADT: 460

SR 2025

Fair

Over: MILK & WATER CREEK

2.5 MI.S.OF EVERETT, Bedford, PA

Built 1926 Load: 46.3 t ADT: 112

SR 4036(LR 49 SPA)

Fair

Over: PA TURNPIKE(I-76);B-406A

NEAR NEW BUENA VISTA, Bedford, PA

Built 1994 Load: 46.3 t ADT: 151

PA TPK (I-76)

Fair

Over: T-446 BR.JUNIATA

NEAR HARTLEY, Bedford, PA

Built 1940 Load: 46.3 t ADT: 36,252

T-444 RIDGE ROAD

Fair

Over: TUB MILL RUN

1.5 MI.NE.OF BREEZEWOOD, Bedford, PA

Built 1925 Load: 46.3 t ADT: 11

SR2089 SB(LR 1011)

Fair

Over: PA TURNPIKE EAST-WEST

PA TURNPIKE UNDER SR2089, Berks, PA

Built 1962 Load: 46.3 t ADT: 3,902

PA 12 (LR 06150)

Fair

Over: 222 SB 422 WB CK CITY ST

PA12-US222/422 INTERCHNGE, Berks, PA

Built 1951 Load: 46.3 t ADT: 55,685

US 222B(LR 157)5TH

Fair

Over: PA 12 (LR 784)

FIFTH ST.HIGHWAY, Berks, PA

Built 1980 Load: 46.3 t ADT: 28,676

SR 2038(LR 06102)

Fair

Over: IRONSTONE CREEK

PINE FORGE RD., Berks, PA

Built 1926 Load: 46.3 t ADT: 440

SR 0222 (LR 1035)

Fair

Over: SR 222 (LR 157)

US222 INTERCHANGE, Berks, PA

Built 1974 Load: 46.3 t ADT: 16,005

SR 0222(LR1035)

Fair

Over: SR 222 (LR 157)

US222 INTERCHANGE, Berks, PA

Built 1974 Load: 46.3 t ADT: 15,843

WEST SHORE DRIVE

Fair

Over: TRIB.TO MAIDEN CREEK

EDGE OF LAKE ONTELAUNEE, Berks, PA

Built 1934 Load: 46.3 t ADT: 300

FRONT STREET

Fair

Over: NORFOLK SOUTHERN RR

NB PA 183 IN READING, Berks, PA

Built 1986 Load: 46.3 t ADT: 5,000

PINE STREET

Fair

Over: MILL CREEK

BETWEEN FRONT AND SECOND, Berks, PA

Built 1920 Load: 46.3 t ADT: 626

PA 36

Fair

Over: BEAVERDAM BR.JUNIATA R.

HOLLIDAYSBURG, Blair, PA

Built 1966 Load: 46.3 t ADT: 5,371

SR 4001(WMPENN HW)

Fair

Over: US 22 & ON/OFF RAMPS

.1 MI.S.OF TUNNEL HILL, Blair, PA

Built 1982 Load: 46.3 t ADT: 1,541

WATER TOWER ROAD

Fair

Over: MARY ANN CREEK

1 MI NORTH OF SR 1011, Blair, PA

Built 1940 Load: 46.3 t ADT: 20

SR 2032

Fair

Over: LANING CREEK

1 MI.E.OF TOWANDA BORO, Bradford, PA

Built 1958 Load: 46.3 t ADT: 1,863

LINCOLN HIGHWAY

Fair

Over: DELAWARE CANAL & CONRAIL

MORRISVILLE 39C05, Bucks, PA

Built 1954 Load: 46.3 t ADT: 60,432

TRAFFIC ROUTE 13

Fair

Over: BRANCH ROCK RUN

.4MI.S.TYBURN RD. 38H10, Bucks, PA

Built 1955 Load: 46.3 t ADT: 18,771

RIVER ROAD

Fair

Over: DYERS CREEK

2MI.N.OF TR-332 33A07, Bucks, PA

Built 1929 Load: 46.3 t ADT: 4,200

SECOND STREET PIKE

Fair

Over: MILL CREEK

@INTER.LR 09034 35F08, Bucks, PA

Built 1964 Load: 46.3 t ADT: 11,370

NEWTOWN BY-PASS

Fair

Over: GREEN LANE(T344)

0.2MI.NORTH PA 332 31H13, Bucks, PA

Built 1974 Load: 46.3 t ADT: 22,972

SOMERTON ROAD

Fair

Over: CSX

METROPOITAN INDUS. 41C06, Bucks, PA

Built 1987 Load: 46.3 t ADT: 3,709

PINE GROVE ROAD

Fair

Over: ROCK RUN

.6MI.TO APPL 212 38J06, Bucks, PA

Built 1957 Load: 46.3 t ADT: 15,726

STERNER MILL ROAD

Fair

Over: POQUESSING CREEK

LOWER SOUTHAMPTON 3261-A8, Bucks, PA

Built 1919 Load: 46.3 t ADT: 50

ELM AVENUE

Fair

Over: IRON WORKS CREEK

1.9 MI SE OF SR 0232, Bucks, PA

Built 1914 Load: 46.3 t ADT: 560

WOODHILL ROAD

Fair

Over: BRANCH JERICHO CREEK

2.4 MI N OF SR 0532, Bucks, PA

Built 1947 Load: 46.3 t ADT: 600

SR0058

Fair

Over: N BR SLIPPERY ROCK CR

NEAR HARRISVILLE, Butler, PA

Built 1951 Load: 46.3 t ADT: 992

SR0422 WB

Fair

Over: SR3007 & LT CONNOQ CR

MERIDIAN ROAD WB, Butler, PA

Built 1992 Load: 46.3 t ADT: 9,043

SR3028

Fair

Over: CONNOQUENESSING CREEK

WAHLVILLE NO.2, Butler, PA

Built 1970 Load: 46.3 t ADT: 1,893

T-382 THREE DEGREE

Fair

Over: GLADE RUN

BTW T404 & SR3012, Butler, PA

Built 1995 Load: 46.3 t ADT: 100

T-582 COAL HOLLOW

Fair

Over: SARVER RUN

3/4 MI NE OF SR 0228, Butler, PA

Built 1920 Load: 46.3 t ADT: 200

T-551 CALLEN ROAD

Fair

Over: LARDINTOWN RUN

BTW T568 & SR2011, Butler, PA

Built 1930 Load: 46.3 t ADT: 100

PA 869

Fair

Over: TOPPER RUN

0.9 MILE EAST OF TR 219, Cambria, PA

Built 1987 Load: 46.3 t ADT: 6,161

T419 BLACKBURN RD

Fair

Over: HINCKSTON RUN

VILLAGE OF VINCO, Cambria, PA

Built 1978 Load: 46.3 t ADT: 200

FRONHEISER STREET

Fair

Over: SOLOMON RUN

JOHNSTOWN FRONHEISER ST, Cambria, PA

Built 1987 Load: 46.3 t ADT: 1,025

SR 155-PA 155

Fair

Over: PORTAGE CREEK

3 MI N EMPORIUM, Cameron, PA

Built 1996 Load: 46.3 t ADT: 1,571

Showing 9,651-9,700 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.