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

T408 Sweetroot Rd

Poor

Over: SHOBERS RUN

4 MI.SW. BEDFORD SPRINGS, Bedford, PA

Built 1953 Load: 10.9 t ADT: 120

SPRING VALLEY ROAD

Poor

Over: BERNHARTS CREEK

BERNHARTS, Berks, PA

Built 1959 Load: 10.9 t ADT: 3,850

WERNER STREET

Poor

Over: WYOMISSING CREEK

MOHNTON/PENNWYN, Berks, PA

Built 1965 Load: 10.9 t ADT: 431

REDINGTON AVENUE

Poor

Over: WEST BR. SUGAR CREEK

REDINGTON AVE TROY BORO, Bradford, PA

Built 1915 Load: 10.9 t ADT: 500

LIONS HEAD ROAD

Poor

Over: BIRCH RUN

WEST CALN 3469-E6, Chester, PA

Built 1974 Load: 10.9 t ADT: 86

SEVEN STARS ROAD

Poor

Over: FRENCH CREEK

EAST VINCENT TWP. 14F04, Chester, PA

Built 1856 Load: 10.9 t ADT: 2,994

CREEK ROAD(T542)

Poor

Over: PICKERING CREEK

SCHUYLKILL TWP. 3364-F3, Chester, PA

Built 1879 Load: 10.9 t ADT: 719

OLD SCHUYLKILL RD

Poor

Over: PIGEON CREEK

500 N of PA-724 3139-G9, Chester, PA

Built 1804 Load: 10.9 t ADT: 406

T-619 MOORE DRIVE

Poor

Over: TOBY CREEK

1.2 mi SW int w/ SR 1013, Clarion, PA

Built 1975 Load: 10.9 t ADT: 50

SR 4001

Poor

Over: KETTLE CREEK

4 MILE SOUTH LEIDY, Clinton, PA

Built 1963 Load: 10.9 t ADT: 190

SR 6 CUSSEWAGO ST.

Poor

Over: OVER FRENCH CREEK

CAMBRIDGE TOWNSHIP, Crawford, PA

Built 1934 Load: 10.9 t ADT: 2,513

T-709 THREE BRG.RD

Poor

Over: OVER E.BR.MUDDY CREEK

1.4 MI. SE. L.COOLEY, Crawford, PA

Built 1960 Load: 10.9 t ADT: 50

SR 3012 WEST SPANS

Poor

Over: SUSQUEHANNA RIVER (WEST)

CITY OF HARRISBURG, Dauphin, PA

Built 1928 Load: 10.9 t ADT: 10,617

WEST FOURTH STREET

Poor

Over: TROUT RUN

2000 FT SW OF SR 0019, Erie, PA

Built 1974 Load: 10.9 t ADT: 326

T316 APPLEBY ROAD

Poor

Over: SHADE CREEK

2 MI.SE.OF SHADE GAP, Huntingdon, PA

Built 1920 Load: 10.9 t ADT: 25

T368 New Fording R

Poor

Over: GREAT TROUGH CREEK

1 MI.NW.OF TODD, Huntingdon, PA

Built 1889 Load: 10.9 t ADT: 82

SR 2007 Spr. gr.

Poor

Over: W BR OCTORARO CREEK

1 MI.N. TAYLORIA, Lancaster, PA

Built 1950 Load: 10.9 t ADT: 508

SR 2030

Poor

Over: PEQUEA CREEK

LIME VALLEY, Lancaster, PA

Built 1927 Load: 10.9 t ADT: 405

T-774 QUARRY ROAD

Poor

Over: MEETINGHOUSE CREEK

1000 NW OF SR 372, Lancaster, PA

Built 1958 Load: 10.9 t ADT: 185

SOUTH GARFIELD RD

Poor

Over: CHIQUES CREEK

0.25 MI. N OF SR 4001, Lancaster, PA

Built 1925 Load: 10.9 t ADT: 415

BARKLEY RD #3

Poor

Over: CAMP RUN

207003 BARKLEY RD, Lawrence, PA

Built 1950 Load: 10.9 t ADT: 100

T-385 VALLEY CROSS

Poor

Over: POTATO CREEK

1500 FT EAST OF SR 46, McKean, PA

Built 1888 Load: 10.9 t ADT: 450

T-402 CADY RUN RD

Poor

Over: PORTAGE CREEK

700 FT WEST OF SR 155, McKean, PA

Built 1908 Load: 10.9 t ADT: 25

BRIDGE 1017 T-693

Poor

Over: OVER PINE RUN

YEAGER RD PERRY TOWNSHIP, Mercer, PA

Built 1961 Load: 10.9 t ADT: 31

BARKLEY ROAD

Poor

Over: MCCABE RUN

2 SW BRIDGEPORT/MCCABE RU, Perry, PA

Built 1977 Load: 10.9 t ADT: 75

SR 4004

Poor

Over: BLOOMING GROVE CREEK

BLMNG GRV TP .6M E SR4002, Pike, PA

Built 1940 Load: 10.9 t ADT: 519

ON MILL STREET

Poor

Over: PINE CREEK

GALETON BORO, Potter, PA

Built 1963 Load: 10.9 t ADT: 464

T-589 PLUMSTEAD RD

Poor

Over: WHITE BR NORTH FORK CRK

500 FT NWE OF SR 1016, Potter, PA

Built 1940 Load: 10.9 t ADT: 50

JULIA ST

Poor

Over: MAHANOY CREEK

JULIA STREET GIRARDVILLE, Schuylkill, PA

Built 1957 Load: 10.9 t ADT: 200

TUNNEL RD

Poor

Over: SCHUYLKILL RIVER

ON T-837 IN LANDINGVILLE, Schuylkill, PA

Built 1925 Load: 10.9 t ADT: 135

T-416

Poor

Over: PORTER CREEK

2.3 MI SSE OF SHUNK, Sullivan, PA

Built 1930 Load: 10.9 t ADT: 50

T-894 RUTLAND TWP.

Poor

Over: BAILEY CREEK

2.7 MI W OF ROSEVILLE, Tioga, PA

Built 1935 Load: 10.9 t ADT: 15

T-421 (CTY. BR. 2)

Poor

Over: WHITE DEER HOLE CREEK

0.25 MI.S OF ALLENWOOD, Union, PA

Built 1889 Load: 10.9 t ADT: 13

T-380 PHIPPS ROAD

Poor

Over: OVER BR. SCRUBGRASS CK.

CLINTON TOWNSHIP, Venango, PA

Built 1915 Load: 10.9 t ADT: 50

SR3031 HOADLEYS RD

Poor

Over: MIDDLE CREEK

CHERRY RIDGE .5 M S TR191, Wayne, PA

Built 1920 Load: 10.9 t ADT: 1,050

RIVER ROAD

Poor

Over: HOLLISTER CREEK

.1M N OF SR 1016, Wayne, PA

Built 1910 Load: 10.9 t ADT: 40

TWP RTE T-684

Poor

Over: EQUINUNK CREEK

WILLIAMS BRIDGE, Wayne, PA

Built 1895 Load: 10.9 t ADT: 60

T976 EDEN DRIVE

Poor

Over: FISHING CREEK

.2E YOCUMTWN/FISHING CRK, York, PA

Built 1961 Load: 10.9 t ADT: 475

RODGERS AVE

Poor

Over: SOLOMON CREEK

AT PLANES AVE INTERSECT, Luzerne, PA

Built 1960 Load: 10.9 t ADT: 110

Kinter Station Rd

Poor

Over: Dutch Run

1 mi E of SR 1013, Indiana, PA

Built 1995 Load: 10.9 t ADT: 50

Skyview Rd (T-339)

Poor

Over: Indian Creek

0.4 mile SE of SR-381, Westmoreland, PA

Built 1930 Load: 10.9 t ADT: 100

VERSAILLES AV

Poor

Over: RAVINE STREET

304005 VERSAILLES AVE VIA, Allegheny, PA

Built 1972 Load: 11.8 t

T-364 CHAPPELL RD

Poor

Over: BOBS CREEK

1 MI.W.OF BLUE KNOB, Blair, PA

Built 1936 Load: 11.8 t ADT: 251

BRIDGE FOUR LANE

Poor

Over: DELAWARE CANAL

200 FT EAST OF SR 32, Bucks, PA

Built 1832 Load: 11.8 t ADT: 50

SR4014

Poor

Over: N BR SLIPPERY ROCK CR

HARRISVILLE, Butler, PA

Built 1912 Load: 11.8 t ADT: 93

T-308

Poor

Over: STERLING RUN

3.5 MILES SW OF CAMERON, Cameron, PA

Built 1930 Load: 11.8 t ADT: 20

KINGS HIGHWAY

Poor

Over: W. BR. BRANDYWINE CREEK

.3 MI WEST SR 82 28J1, Chester, PA

Built 1935 Load: 11.8 t ADT: 4,624

BROAD RUN ROAD

Poor

Over: BROAD RUN CREEK

NEAR NEW GARDEN 54K4, Chester, PA

Built 1931 Load: 11.8 t ADT: 1,906

GARRETT MILL ROAD

Poor

Over: RIDLEY CREEK

.5 Mi N PA-3 3585-B5, Chester, PA

Built 1930 Load: 11.8 t ADT: 500

T-628 COUNTY BR#51

Poor

Over: SCOTCH RUN

1.5 MI NW. SHUMANS, Columbia, PA

Built 1911 Load: 11.8 t ADT: 70

Showing 20,851-20,900 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.