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 879-PA 879

Fair

Over: R J CORMAN/W BR SUSQ R

CLEARFIELD, Clearfield, PA

Built 1974 Load: 32.7 t ADT: 11,827

SR 1004

Fair

Over: W BR SUSQUEHANNA RIVER

CLEARFIELD BORO, Clearfield, PA

Built 1938 Load: 32.7 t ADT: 3,593

SR 44-PA 44

Fair

Over: PINE CREEK

2 MILE NORTHEAST AVIS, Clinton, PA

Built 1968 Load: 32.7 t ADT: 3,461

SR 80-I 80

Fair

Over: PEPPER RUN

1 MI W EXIT 185, Clinton, PA

Built 1968 Load: 32.7 t ADT: 8,204

SR 120-PA 120

Fair

Over: MILL RUN

GLEN UNION, Clinton, PA

Built 1928 Load: 32.7 t ADT: 2,002

SR 150-PA 150

Fair

Over: PENNA CANAL

FLEMINGTON BORO, Clinton, PA

Built 1934 Load: 32.7 t ADT: 13,438

SR 150-PA 150

Fair

Over: PLUM RUN

MCELHATTAN, Clinton, PA

Built 1938 Load: 32.7 t ADT: 4,396

SR 150-PA 150

Fair

Over: CHATHAM RUN

MCELHATTAN, Clinton, PA

Built 1938 Load: 32.7 t ADT: 3,096

SR 220-US 220

Fair

Over: FISHING CREEK

CEDAR SPRINGS, Clinton, PA

Built 1976 Load: 32.7 t ADT: 6,691

SR 220-US 220

Fair

Over: FISHING CREEK

CEDAR SPRINGS, Clinton, PA

Built 1976 Load: 32.7 t ADT: 6,918

SR 220-US 220

Fair

Over: T-378 HANNA ST.

CASTANEA, Clinton, PA

Built 1976 Load: 32.7 t ADT: 8,448

SR 477-PA 477

Fair

Over: MILL CREEK

1/2 MI NORTH LOGANTON, Clinton, PA

Built 1968 Load: 32.7 t ADT: 2,899

SR 880-PA 880

Fair

Over: RAUCHTOWN CREEK

BIG ROCK, Clinton, PA

Built 1930 Load: 32.7 t ADT: 1,550

T.R.118

Fair

Over: OVER COLES CREEK

5 MILES NE OF HARRINGTON, Columbia, PA

Built 1951 Load: 32.7 t ADT: 2,110

SR 0339

Fair

Over: OVER SCOTCH RUN

2 MILES S OF MAINVILLE, Columbia, PA

Built 1974 Load: 32.7 t ADT: 1,503

PA 487

Fair

Over: TRIB TO FISHING CREEK

1 MI S ORANGEVILLE, Columbia, PA

Built 1938 Load: 32.7 t ADT: 5,174

SR 487

Fair

Over: OVER COLES CREEK

4.5 MILES N OF BENTON, Columbia, PA

Built 1932 Load: 32.7 t ADT: 1,473

SR 1022

Fair

Over: FISHING CREEK

6 MI NE OF ORANGEVILLE, Columbia, PA

Built 1947 Load: 32.7 t ADT: 1,650

SR 1029

Fair

Over: TRIB EAST BR BRIAR CREEK

GLEN BROOK RESERVOIR, Columbia, PA

Built 1937 Load: 32.7 t ADT: 423

SLABTOWN ROAD

Fair

Over: ROARING CREEK

VILLAGE OF SLABTOWN, Columbia, PA

Built 1913 Load: 32.7 t ADT: 107

S.R. 2026

Fair

Over: BEAVER RUN

3 MI E OF SHUMANS, Columbia, PA

Built 1930 Load: 32.7 t ADT: 79

SR 4037

Fair

Over: MUD RUN

5 MI NW OF MILLVILLE BORO, Columbia, PA

Built 1934 Load: 32.7 t ADT: 175

SR 4041

Fair

Over: TRIBUTARY GREEN CREEK

VILLAGE OF ROHRSBURG, Columbia, PA

Built 1963 Load: 32.7 t ADT: 1,093

T-829 BR # BN2

Fair

Over: RAVEN CREEK

1.9 MI SE OF BENTON, Columbia, PA

Built 1963 Load: 32.7 t ADT: 100

T-344 CTY BR # 25

Fair

Over: SOUTH BRANCH ROARING CRK

2.7 Mi. NE OF ELYSBURG, Columbia, PA

Built 1974 Load: 32.7 t ADT: 70

T-314 CTY BR# 7

Fair

Over: ROARING CREEK

3.75 MI.SW OF CATAWISSA, Columbia, PA

Built 1964 Load: 32.7 t ADT: 75

T-459 BRIDGE# 2

Fair

Over: GREEN CREEK

1.2 MI N OF ROHRSBURG, Columbia, PA

Built 1984 Load: 32.7 t ADT: 70

T-599 GRNWOOD BR#3

Fair

Over: LITTLE GREEN CREEK

1.3 MI. NW. OF ROHRSBURG, Columbia, PA

Built 1910 Load: 32.7 t ADT: 50

T343 LOCUST BR#L01

Fair

Over: LICK RUN

1 MI NE OF NUMIDIA, Columbia, PA

Built 1927 Load: 32.7 t ADT: 200

T468 COUNTY BR#19

Fair

Over: ROARING CREEK

1 MI NW OF MILL GROVE, Columbia, PA

Built 1981 Load: 32.7 t ADT: 50

T-351 COUNTY BR#58

Fair

Over: OVER MONTOUR RUN

1 MI WEST OF RUPERT, Columbia, PA

Built 1940 Load: 32.7 t ADT: 70

T-519 (CTY BR#70

Fair

Over: LITTLE FISHING CREEK

0.5 MI SE. MORDANSVILLE, Columbia, PA

Built 1974 Load: 32.7 t ADT: 75

T-645 CTY BR # 93

Fair

Over: LITTLE FISHING CREEK

4.5 MI NE OF MILLVILLE, Columbia, PA

Built 1962 Load: 32.7 t ADT: 50

T-747 CTY BR.151

Fair

Over: COLES CREEK

VILLAGE OF TRI MILLS, Columbia, PA

Built 1970 Load: 32.7 t ADT: 75

SR 0080 (RAMP Z)

Fair

Over: TRIB TO SUSQUEHANNA RIV.

LIME RIDGE INTERCHANGE, Columbia, PA

Built 1963 Load: 32.7 t ADT: 435

SR 6 GRAND ARMY HY

Fair

Over: OVER VAN HORNE CREEK

VERNON TOWNSHIP, Crawford, PA

Built 1971 Load: 32.7 t ADT: 30,081

SR 6 LAKES TO SEA

Fair

Over: OVER FRENCH CREEK TRIB

CAMBRIDGE TOWNSHIP, Crawford, PA

Built 1967 Load: 32.7 t ADT: 2,513

SR 8 MAIN STREET

Fair

Over: OVER THOMPSON CREEK

HYDETOWN BOROUGH, Crawford, PA

Built 1948 Load: 32.7 t ADT: 3,212

SR 18

Fair

Over: OVER CROOKED CREEK TRIB

WEST FALLOWFIELD TOWNSHIP, Crawford, PA

Built 1921 Load: 32.7 t ADT: 2,355

SR 18

Fair

Over: OVER PATTON RUN

WEST FALLOWFIELD TOWNSHIP, Crawford, PA

Built 1922 Load: 32.7 t ADT: 2,043

SR 18 SPRINGBORO R

Fair

Over: OVER CONNEAUT CREEK TRIB

SPRING TOWNSHIP, Crawford, PA

Built 1978 Load: 32.7 t ADT: 1,472

SR 79 NB

Fair

Over: OVER VAN HORN RUN

VERNON TOWNSHIP, Crawford, PA

Built 1969 Load: 32.7 t ADT: 6,554

SR 79 SB

Fair

Over: OVER VAN HORN RUN

VERNON TOWNSHIP, Crawford, PA

Built 1969 Load: 32.7 t ADT: 7,557

SR 98 CUSSEWAGO RD

Fair

Over: OVER CUSSEWAGO CREEK

CUSSEWAGO TOWNSHIP, Crawford, PA

Built 1933 Load: 32.7 t ADT: 1,743

SR 1016 STATION RD

Fair

Over: OVER MUDDY CREEK TRIB

ROCKDALE TOWNSHIP, Crawford, PA

Built 1954 Load: 32.7 t ADT: 420

SR 2003 MERCER PK.

Fair

Over: OVER FRENCH CREEK TRIB

UNION TOWNSHIP, Crawford, PA

Built 1974 Load: 32.7 t ADT: 2,272

SR 2014 FREYERMUTH

Fair

Over: OVER MUD RUN

EAST FAIRFIELD TOWNSHIP, Crawford, PA

Built 1962 Load: 32.7 t ADT: 364

SR 3004 ADAMAVILLE

Fair

Over: OVER SR79 R P SHAFER N/S

GREENWOOD TOWNSHIP, Crawford, PA

Built 1965 Load: 32.7 t ADT: 577

SR 3019 LAKE ROAD

Fair

Over: LITTLE SANDY CREEK

GREENWOOD TOWNSHIP, Crawford, PA

Built 1940 Load: 32.7 t ADT: 365

SR 4007 WATSON RUN

Fair

Over: OVER WATSON RUN

VERNON TOWNSHIP, Crawford, PA

Built 1963 Load: 32.7 t ADT: 411

Showing 4,251-4,300 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.