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 4015

Poor

Over: QUEMAHONING CREEK

QUECREEK, Somerset, PA

Built 1917 Load: 30.8 t ADT: 350

SR 1018

Poor

Over: SNAKE CREEK

FRANKLIN TWP JCT TR 29, Susquehanna, PA

Built 1940 Load: 30.8 t ADT: 121

SR 4002

Poor

Over: TRIB TO CHOCONUT CREEK

CHOCONUT TWP 787E TR 267, Susquehanna, PA

Built 1942 Load: 30.8 t ADT: 1,182

SR 62 MARKET ST.

Poor

Over: OVER WILTSIE RUN

PINE GROVE TOWNSHIP, Warren, PA

Built 1960 Load: 30.8 t ADT: 4,272

SR 3004 SELKIRK RD

Poor

Over: OVER CALDWELL CREEK

SOUTHWEST TOWNSHIP, Warren, PA

Built 1952 Load: 30.8 t ADT: 88

SR 3031

Poor

Over: WANGUM BROOK

CHERRY RIDGE 1.1MS TR 191, Wayne, PA

Built 1935 Load: 30.8 t ADT: 1,050

SR 1005

Poor

Over: TRIB TO LAKE CAREY

LEMON TWP .1 M N SR 1003, Wyoming, PA

Built 1934 Load: 30.8 t ADT: 227

SR 4001

Poor

Over: LITTLE CONEWAGO CREEK

3MILES E OF DOVER BORO, York, PA

Built 1937 Load: 30.8 t ADT: 8,512

MARKET STREET

Poor

Over: CSX RAILROAD

CENTER CITY PHILA.3590B08, Philadelphia, PA

Built 1932 Load: 30.8 t ADT: 14,101

DELAWARE EXPWAY.

Poor

Over: VENANGO STREET

NEAR TIOGA STREET 3591F03, Philadelphia, PA

Built 1965 Load: 30.8 t ADT: 158,822

THOUSAND OAK BLVD

Poor

Over: CONESTOGA CREEK

SOUTH OF JOANNA, Berks, PA

Built 1986 Load: 30.8 t ADT: 150

BALDWIN AVENUE

Poor

Over: CONNELL RUN

800SOUTH EAST OF SR 1037, Fayette, PA

Built 1970 Load: 30.8 t ADT: 576

T-405 HUNT ROAD

Poor

Over: HINCKSTON RUN

1 MI W OF WESTLEY CHAPEL, Cambria, PA

Built 1938 Load: 30.8 t ADT: 15

Old Rt. 13

Poor

Over: Otter Creek

Bristol ADC 3375-A5, Bucks, PA

Built 1920 Load: 30.8 t ADT: 7,200

Woodland Avenue

Poor

Over: Chartiers Creek

City of Washington, Washington, PA

Built 1960 Load: 30.8 t ADT: 350

JACOBS MILL ROAD

Poor

Over: BEAVER CREEK

1 SE BERLIN/BEAVER CREEK, Adams, PA

Built 1954 Load: 31.8 t ADT: 75

SALTSBURG RD

Poor

Over: PLUM CREEK

50 E. OF PIERSON RUN RD., Allegheny, PA

Built 1957 Load: 31.8 t ADT: 7,708

CREEK ST

Poor

Over: WHITAKER CREEK

448001 OVER WHITAKER CRK, Allegheny, PA

Built 1993 Load: 31.8 t ADT: 75

MALL ENTRANCE

Poor

Over: BUSINESS 22

MONROEVILLE MALL OVERPASS, Allegheny, PA

Built 1970 Load: 31.8 t ADT: 4,816

GEORGETOWN RD.

Poor

Over: SR 0051

1025N.W. OF SR 4013, Beaver, PA

Built 1952 Load: 31.8 t ADT: 400

SR 1020

Poor

Over: SHERMAN VALLEY RUN

3.8 MILE EAST OF SR 1009, Bedford, PA

Built 1941 Load: 31.8 t ADT: 82

SR 4027

Poor

Over: SCRUBGRASS CREEK

2 MI.N.OF IMLER, Bedford, PA

Built 1928 Load: 31.8 t ADT: 253

SR 422(LR 793)

Poor

Over: SCHUYLKILL RIVER

CITY LINE READING BYPASS, Berks, PA

Built 1963 Load: 31.8 t ADT: 54,692

SR 4028(LR06032SP)

Poor

Over: TRIB.TO MILL CREEK

HEX HWY.NEAR PINE ROAD, Berks, PA

Built 1932 Load: 31.8 t ADT: 3,399

MYER DRIVE

Poor

Over: CROSSKILL CREEK

N OF I-78 S OF MECKVILLE, Berks, PA

Built 1921 Load: 31.8 t ADT: 200

MAPLE GROVE ROAD

Poor

Over: ALLEGHENY CREEK

KRAMER ROAD INTERSECTION, Berks, PA

Built 1968 Load: 31.8 t ADT: 375

T352 Butler Hlw Rd

Poor

Over: TRIB. OF SOUTH DRY RUN

2 MI.W.OF EAST FREEDOM, Blair, PA

Built 1957 Load: 31.8 t ADT: 253

T378 LWR PINEY CRK

Poor

Over: PINEY CREEK

.5 MI.N.OF ROYER, Blair, PA

Built 1909 Load: 31.8 t ADT: 219

EUREKA DRIVE-TROY

Poor

Over: SOUTH FORK SUGAR CREEK

EUREKA DR. TROY BORO., Bradford, PA

Built 1963 Load: 31.8 t ADT: 499

NEW US-1 BY-PASS

Poor

Over: CSX/SEPTA SR2037 SPUR B

.5MI.N.NESHAMINY 41H02, Bucks, PA

Built 1967 Load: 31.8 t ADT: 46,076

MEARNS ROAD

Poor

Over: BRANCH LITTLE NESHAMINY

400ALMSHOUSE RD. 30B12, Bucks, PA

Built 1934 Load: 31.8 t ADT: 3,559

FOREST GROVE ROAD

Poor

Over: MILL CREEK

WYCOMBE VILLAGE 3036-G5, Bucks, PA

Built 1905 Load: 31.8 t ADT: 3,809

CENTURY LANE

Poor

Over: POQUESSING CREEK

0.7 MI W SR132 ADC 3373F3, Bucks, PA

Built 1853 Load: 31.8 t ADT: 200

SMITH ROAD

Poor

Over: ROBIN RUN

2 MI S SR413 ADC 3036-E6, Bucks, PA

Built 1927 Load: 31.8 t ADT: 100

ERIE ROAD (T-461)

Poor

Over: TOHICKON CREEK

.72MI E OFSR0212 2695-J9, Bucks, PA

Built 1932 Load: 31.8 t ADT: 200

MAPLE AVENUE

Poor

Over: BREAKNECK CREEK

50 FT FROM INT W/SR 3015, Butler, PA

Built 1961 Load: 31.8 t ADT: 300

T520 Thirteen Hill

Poor

Over: W.BR.SUSQUEHANNA RIVER

.3 MI.SW.OF WATKINS, Cambria, PA

Built 1915 Load: 31.8 t ADT: 540

PA 534 (LR 13018)

Poor

Over: MUD RUN

0.5 MI.N.OF MECKESVILLE, Carbon, PA

Built 1961 Load: 31.8 t ADT: 2,317

SR 2004 (LR 13014)

Poor

Over: MILL CREEK

AQUASHICOLA FIRELINE RD., Carbon, PA

Built 1960 Load: 31.8 t ADT: 1,698

T-526 FOX GAP ROAD

Poor

Over: ELK CREEK

1800 FROM INTER OF SR 192, Centre, PA

Built 1994 Load: 31.8 t ADT: 50

MANOR AVENUE

Poor

Over: BEAVER CREEK

DOWNINGTOWN 30F2, Chester, PA

Built 1934 Load: 31.8 t ADT: 12,588

HOMEVILLE ROAD

Poor

Over: MUDDY RUN

CREAM PENNA. 43B6, Chester, PA

Built 1952 Load: 31.8 t ADT: 163

ART SCHOOL ROAD

Poor

Over: BRANCH OF PICKERING CRK

W VINCET;E PIKELND 14B09, Chester, PA

Built 1928 Load: 31.8 t ADT: 194

T-689 WILDCAT SCHL

Poor

Over: WILDCAT RUN

0.1 mi E int w/ SR 0861, Clarion, PA

Built 1963 Load: 31.8 t ADT: 50

UNDER STATE ST-HAR

Poor

Over: PAXTON CREEK

PXTN C/UNDER STATE ST/HBG, Dauphin, PA

Built 1940 Load: 31.8 t ADT: 200

T-423 BURKE ROAD

Poor

Over: SPRING RUN

3 MI EAST OF SR 255 INTER, Elk, PA

Built 1930 Load: 31.8 t ADT: 130

SR 3011 KNAPP ROAD

Poor

Over: OVER MARSH RUN

CONNEAUT TOWNSHIP, Erie, PA

Built 1961 Load: 31.8 t ADT: 383

T-672 UNION LEBOEU

Poor

Over: S BR FRENCH CREEK

1000 FT SOUTH OF SR 0097, Erie, PA

Built 1975 Load: 31.8 t ADT: 496

RUN AVENUE

Poor

Over: CONNELL RUN

EAST PARK OVER CONNELL RN, Fayette, PA

Built 1938 Load: 31.8 t ADT: 100

SR 4001

Poor

Over: SINDELDECKER RUN

SALUVIA, Fulton, PA

Built 1937 Load: 31.8 t ADT: 356

Showing 22,201-22,250 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.