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

SR2005

Fair

Over: COWANSHANNOCK CREEK

ELGIN CEMETERY, Armstrong, PA

Built 1940 Load: 25.4 t ADT: 640

SHENANGO ROAD

Fair

Over: NORFOLK SOUTHERN RR

SR 4006 / SR 4001 INTER., Beaver, PA

Built 1976 Load: 25.4 t ADT: 895

SR 4022

Fair

Over: ADAMS RUN

VILLAGE OF POINT, Bedford, PA

Built 1965 Load: 25.4 t ADT: 290

PA TPK (I-76)

Fair

Over: PRIVATE QUARRY RD

@ ENTERPRISES ASHCOMQUAR, Bedford, PA

Built 1999 Load: 25.4 t ADT: 36,252

SR 61(LR 160)

Fair

Over: MAIDEN CREEK

VINCE JAMES BRIDGE, Berks, PA

Built 1962 Load: 25.4 t ADT: 31,046

SR 61 (LR 160)

Fair

Over: BARTRAM TR (RAIL-TRAILS)

1.5 MI N OF HAMBURG, Berks, PA

Built 1952 Load: 25.4 t ADT: 23,492

SR 422(LR 793)

Fair

Over: SR 2005(LR 148)

US422 INTERCHANGE, Berks, PA

Built 1963 Load: 25.4 t ADT: 41,044

SR2005(LR157)222B

Fair

Over: LAUREL RUN

FIFTH AND WATER ST., Berks, PA

Built 1926 Load: 25.4 t ADT: 17,760

US 222 (LR 157)

Fair

Over: TRIB.TO MOSELEM CREEK

S.END OF KUTZTOWN BYPASS, Berks, PA

Built 1934 Load: 25.4 t ADT: 26,912

PA 645(LR 6004)

Fair

Over: TRIB LITTLE SWATARA CK

CAMP SWATARA ROAD, Berks, PA

Built 1934 Load: 25.4 t ADT: 2,570

SR 2011(LR 157 SP)

Fair

Over: TR.LAUREL CK

KUTZTOWN ROAD, Berks, PA

Built 1929 Load: 25.4 t ADT: 9,745

SR 12 (LR 784 EB)

Fair

Over: Spring Valley Rd.

NORTH OF PRICETOWN ROAD, Berks, PA

Built 1978 Load: 25.4 t ADT: 8,572

SR 3019 (LR 06070)

Fair

Over: NORFOLK SOUTHERN RR

PARK ROAD, Berks, PA

Built 1925 Load: 25.4 t ADT: 11,729

GUN CLUB RD.

Fair

Over: MILL CREEK

WEST OF EAGLE POINT, Berks, PA

Built 1976 Load: 25.4 t ADT: 300

T424 Scotch Vly Rd

Fair

Over: TRIB. TO BRUSH CREEK

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

Built 1982 Load: 25.4 t ADT: 1,600

WEST 9TH AVENUE

Fair

Over: SPRING RUN

PARK BLVD WEST 9TH AVE, Blair, PA

Built 1993 Load: 25.4 t ADT: 515

SR 8004 (RAMP BC)

Fair

Over: PA 764

2.8 MI.N.OF DUNCANSVILLE, Blair, PA

Built 1983 Load: 25.4 t ADT: 3,910

SR 6

Fair

Over: SUGAR CREEK

EAST TROY, Bradford, PA

Built 1941 Load: 25.4 t ADT: 3,431

SR 0187

Fair

Over: PARKS CREEK

.5 MI N. OF ROME BORO, Bradford, PA

Built 1920 Load: 25.4 t ADT: 1,468

US 220

Fair

Over: SR 1064 SEG 0010

2.5 MI.S.OF S.WAVERLY B., Bradford, PA

Built 1973 Load: 25.4 t ADT: 8,386

SR 467

Fair

Over: JEROME CREEK

VILLAGE OF ALLIS HOLLOW, Bradford, PA

Built 1950 Load: 25.4 t ADT: 1,658

SR 1049

Fair

Over: BRANCH OF PEDLETON CREEK

1 MI S OF SOUTH WARREN, Bradford, PA

Built 1941 Load: 25.4 t ADT: 339

SR 4016

Fair

Over: SOUTH CREEK

COLUMBIA X-ROADS, Bradford, PA

Built 1961 Load: 25.4 t ADT: 1,273

INTERSTATE 295 EB

Fair

Over: NORFOLK SOUTHERN & CSX

1MI.N.LANGHORNE 37H08, Bucks, PA

Built 1972 Load: 25.4 t ADT: 23,523

SOUDERTON ROAD

Fair

Over: SELLERSVILLE BYPASS

SOUTH TELFORD 20E11, Bucks, PA

Built 1967 Load: 25.4 t ADT: 8,836

EAST STATE STREET

Fair

Over: WATSON CREEK

STATE;FURLONG RDS. 23H10, Bucks, PA

Built 1952 Load: 25.4 t ADT: 12,633

DOYLESTWN BYPAS NB

Fair

Over: EASTON ROAD

DOYLESTOWN 23A06, Bucks, PA

Built 1973 Load: 25.4 t ADT: 6,427

GEIGEL HILL ROAD

Fair

Over: SWAMP CREEK

.9MI.WEST RTE-32 11J02, Bucks, PA

Built 1860 Load: 25.4 t ADT: 894

PA TPK (I-476)

Fair

Over: MOLASSES CREEK

S OF QUAKERTOWN INTERCH., Bucks, PA

Built 1955 Load: 25.4 t ADT: 50,307

RAMP J

Fair

Over: CSX

LR 281 PAR 37G08, Bucks, PA

Built 1972 Load: 25.4 t ADT: 538

SR0422

Fair

Over: SR2004

NE OF BUTLER, Butler, PA

Built 1960 Load: 25.4 t ADT: 21,181

SR1003 MOSEYWOODRD

Fair

Over: I-80

MOSEYWOOD RD. OVER I-80, Carbon, PA

Built 1964 Load: 25.4 t ADT: 1,197

SR 3010

Fair

Over: SPRING CREEK

OAK HALL, Centre, PA

Built 1937 Load: 25.4 t ADT: 1,007

US 30 BYPASS;RMP F

Fair

Over: BELL TAVERN ROAD

NEAR DOWNINGTOWN 21A12, Chester, PA

Built 1961 Load: 25.4 t ADT: 52,411

UNIONVILLE ROAD

Fair

Over: US 1 BY-PASS

NO. KENNETT SQUARE 47E3, Chester, PA

Built 1965 Load: 25.4 t ADT: 14,534

POTTSTOWN BYPASS

Fair

Over: RAMPS G & H

INTER. W/ SR 724 2H13, Chester, PA

Built 1965 Load: 25.4 t ADT: 55,039

FERNHILL ROAD

Fair

Over: US 202

.5 MI N PAOLI PIKE 32D7, Chester, PA

Built 1968 Load: 25.4 t ADT: 2,786

WATSON MILL ROAD

Fair

Over: BROAD RUN

LONDON BRITAIN 3910-J8, Chester, PA

Built 1915 Load: 25.4 t ADT: 959

BRANDAMORE RD;T439

Fair

Over: WEST BR BRANDYWINE CREEK

W.BRANDYWINE TWP. 18J05, Chester, PA

Built 1980 Load: 25.4 t ADT: 868

BAPTIST CHURCH RD

Fair

Over: PIGEON CREEK

E COVENTRY TWP 3139-F9, Chester, PA

Built 1916 Load: 25.4 t ADT: 264

HALL ROAD

Fair

Over: BRANCH BIG ELK CREEK

0.7 MI N BALT PK 3797-K10, Chester, PA

Built 1955 Load: 25.4 t ADT: 280

ROSS FORDING ROAD

Fair

Over: BRANCH KNIGHTS RUN

.75MI.E.OCTORARO 3687-D9, Chester, PA

Built 1974 Load: 25.4 t ADT: 360

SR 1006

Fair

Over: SR 80-I 80

2 MI W EXIT 120, Clearfield, PA

Built 1965 Load: 25.4 t ADT: 796

T-399 CLEAR RUN RD

Fair

Over: CLEAR RUN

300 FT NE OF T-405, Clearfield, PA

Built 1974 Load: 25.4 t ADT: 1,280

SR 120-PA 120

Fair

Over: NORFOLK AND SOUTHERN

RENOVO BORO, Clinton, PA

Built 1970 Load: 25.4 t ADT: 1,560

SR 120-PA 120

Fair

Over: WB SUSQ R/TR 475/NORFOLK

HYNER, Clinton, PA

Built 1987 Load: 25.4 t ADT: 2,002

T-354 RAG VALLEY

Fair

Over: FISHING CREEK

0.4 MI SW OF MACKEYVILLE, Clinton, PA

Built 1974 Load: 25.4 t ADT: 50

T-307

Fair

Over: KETTLE CREEK

3.1 MI N ALVIN R BUSH DAM, Clinton, PA

Built 1899 Load: 25.4 t ADT: 125

SR 77 STATE STREET

Fair

Over: OVER WOODCOCK CREEK TRIB

RICHMOND TOWNSHIP, Crawford, PA

Built 1929 Load: 25.4 t ADT: 2,040

SR 1019 OLD PLANK

Fair

Over: OVER BOLES RUN

VENANGO TOWNSHIP, Crawford, PA

Built 1957 Load: 25.4 t ADT: 1,508

Showing 1,501-1,550 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.