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

DOYLESTOWN BY-PASS

Fair

Over: BRANCH NESHAMINY CREEK

.3MI.EAST PA 611 29B01, Bucks, PA

Built 1973 Load: 31.8 t ADT: 15,464

WINDY BUSH ROAD

Fair

Over: PIDCOCK CREEK

BUCKMANVILLE 25D10, Bucks, PA

Built 1930 Load: 31.8 t ADT: 3,423

SWAMP ROAD

Fair

Over: PINE RUN

.5MI.N.DOYLESTOWN 22K08, Bucks, PA

Built 1941 Load: 31.8 t ADT: 19,355

JACKSONVILLE ROAD

Fair

Over: BRANCH LITTLE NESHAMINY

NORTHAMPTON TWP. 35C01, Bucks, PA

Built 1967 Load: 31.8 t ADT: 6,963

DURHAM ROAD

Fair

Over: CABIN RUN

.5MILES LR-09060 16K05, Bucks, PA

Built 1938 Load: 31.8 t ADT: 3,841

BROAD STREET(T350)

Fair

Over: DOYLESTOWN BYPASS

N.END DOYLESTOWN 22J10, Bucks, PA

Built 1973 Load: 31.8 t ADT: 4,790

TRENTON AVENUE

Fair

Over: ROCK RUN

.5MI.NORTH US-1 38H06, Bucks, PA

Built 1920 Load: 31.8 t ADT: 15,593

WOODBOURNE ROAD

Fair

Over: CORE CREEK

2MI.S.E. NEWTOWN 37D04, Bucks, PA

Built 1976 Load: 31.8 t ADT: 2,173

LIMEKILN ROAD

Fair

Over: PA 611 BY-PASS(LR1068)

WEST DOYLESTOWN 22J11, Bucks, PA

Built 1973 Load: 31.8 t ADT: 4,990

THATCHER ROAD

Fair

Over: KIMPLES CREEK

1MI.E.OF LR 09129 08K11, Bucks, PA

Built 1972 Load: 31.8 t ADT: 884

KUMRY ROAD

Fair

Over: SCHMOUTZ CREEK

.5MI.W.PA.TPK. 12H05, Bucks, PA

Built 1937 Load: 31.8 t ADT: 1,206

SR3044 (T-365)

Fair

Over: SR0079 NB&SB

BURNSIDE ROAD, Butler, PA

Built 1964 Load: 31.8 t ADT: 291

SR0528

Fair

Over: CONNOQUENESSING CREEK

WAHLVILLE NO.4, Butler, PA

Built 1969 Load: 31.8 t ADT: 818

SR2023

Fair

Over: LITTLE BUFFALO CREEK

SANDY LICK, Butler, PA

Built 1989 Load: 31.8 t ADT: 1,086

SR4007

Fair

Over: SR0079 NB&SB

WEST PARK RD NO.1, Butler, PA

Built 1964 Load: 31.8 t ADT: 1,256

T436 COONEY ROAD

Fair

Over: US 22

1.4 MILE WEST OF TR 53, Cambria, PA

Built 1982 Load: 31.8 t ADT: 696

PA 36

Fair

Over: CLEARFIELD CREEK

ASHVILLE, Cambria, PA

Built 1948 Load: 31.8 t ADT: 3,568

US 219

Fair

Over: S FORK L CONE RIVER & RR

0.4 MILE NORTH OF TR 869, Cambria, PA

Built 1968 Load: 31.8 t ADT: 15,267

US 219

Fair

Over: SR 2006

1.0 MILE NORTH OF TR 869, Cambria, PA

Built 1968 Load: 31.8 t ADT: 15,267

US 219

Fair

Over: PA53 SR3024 & NORFOLK S.

OVER TR 53, Cambria, PA

Built 1968 Load: 31.8 t ADT: 12,978

SR 2014

Fair

Over: US 22

.75 MI.E.OF CRESSON, Cambria, PA

Built 1983 Load: 31.8 t ADT: 5,061

SR 3006

Fair

Over: STONY CREEK RIVER

0.01 MILE EAST OF PA 403, Cambria, PA

Built 1937 Load: 31.8 t ADT: 6,735

SR 4017

Fair

Over: CHEST CREEK

PATTON BOROUGH, Cambria, PA

Built 1950 Load: 31.8 t ADT: 483

T476 VIC MILLER RD

Fair

Over: ELK CREEK

1 MI.NW.OF BELSANO, Cambria, PA

Built 1978 Load: 31.8 t ADT: 56

SR 2019(LR 163 RP)

Fair

Over: NORFOLK/SOUTHERN RR

BOWMANSTOWN(BANK ST.), Carbon, PA

Built 1962 Load: 31.8 t ADT: 4,011

SR 80-I 80

Fair

Over: SR 1010

5 MILES EAST EXIT 161, Centre, PA

Built 1968 Load: 31.8 t ADT: 11,545

SR 80-I 80

Fair

Over: SR 1010

5 MILES EAST EXIT 161, Centre, PA

Built 1968 Load: 31.8 t ADT: 11,912

SR 80-I 80

Fair

Over: TWP RD 476

7 MILES EAST EXIT 161, Centre, PA

Built 1968 Load: 31.8 t ADT: 11,912

SR 550-PA 550

Fair

Over: SPRING CREEK

BELLEFONTE, Centre, PA

Built 1952 Load: 31.8 t ADT: 2,564

SR 879-PA 879

Fair

Over: W BR SUSQUEHANNA RIVER

KARTHAUS, Centre, PA

Built 1937 Load: 31.8 t ADT: 876

SR 1006

Fair

Over: NITTANY CREEK

1 MI E MILESBURG, Centre, PA

Built 1929 Load: 31.8 t ADT: 785

T-400

Fair

Over: WALLACE RUN

0.3 MI W OF SR 144 INTER, Centre, PA

Built 1965 Load: 31.8 t ADT: 150

US-1 (NB)

Fair

Over: EAST BR. BIG ELK CREEK

NEAR FORESTVILLE 44H08, Chester, PA

Built 1967 Load: 31.8 t ADT: 10,507

US-1 (SB)

Fair

Over: EAST BR. BIG ELK CREEK

NEAR FORESTVILLE 44H08, Chester, PA

Built 1967 Load: 31.8 t ADT: 9,961

HONEY BROOK ROAD

Fair

Over: WEST BR.BRANDYWINE CREEK

1.5 MI. HONEY BROOK 17F1, Chester, PA

Built 1928 Load: 31.8 t ADT: 5,917

ROUTE 30 BY-PASS

Fair

Over: COUNTRY CLUB ROAD (T370)

NEAR COATESVILLE 28E3, Chester, PA

Built 1961 Load: 31.8 t ADT: 29,503

US 30 BYPASS

Fair

Over: NORWOOD ROAD

DOWNINGTOWN 20G13, Chester, PA

Built 1961 Load: 31.8 t ADT: 64,245

PENNSYLVANIA AVE.

Fair

Over: TROUT RUN

AVONDALE 46E08, Chester, PA

Built 1941 Load: 31.8 t ADT: 14,814

WEST CHESTER BYPAS

Fair

Over: PAOLI PIKE (OLD US 202)

EAST WEST CHESTER 32D08, Chester, PA

Built 1954 Load: 31.8 t ADT: 138,453

MORSTEIN RD (T387)

Fair

Over: TRAFFIC ROUTE 202

2.7 MI. N WC 32E1, Chester, PA

Built 1968 Load: 31.8 t ADT: 1,189

STONEY RUN ROAD

Fair

Over: STONEY RUN CREEK

SW SPRING CITY 7H11, Chester, PA

Built 1926 Load: 31.8 t ADT: 1,044

PIKELAND AVE(T467)

Fair

Over: STONY RUN

E VINCENT;PIKELAND3252-C4, Chester, PA

Built 1916 Load: 31.8 t ADT: 1,235

SOUTHRIDGE DRIVE

Fair

Over: WEST BR. RED CLAY CREEK

0.42 MI TO SR 82 3801-J10, Chester, PA

Built 1963 Load: 31.8 t ADT: 415

OLD MILL ROAD

Fair

Over: BUCK RUN

800 N of BUS 30 3578-E3, Chester, PA

Built 1975 Load: 31.8 t ADT: 210

DOWLIN FORGE ROAD

Fair

Over: SHAMONA CREEK

.6 Mi W. Creek Rd 3471-J4, Chester, PA

Built 1907 Load: 31.8 t ADT: 560

ICEDALE ROAD

Fair

Over: W. BR. BRANDYWINE CREEK

.4 Mi SW US-322 3359-H10, Chester, PA

Built 1930 Load: 31.8 t ADT: 500

RAMP T

Fair

Over: US RTE 30 RAMP U

30/202 INTERCHNG 22D10, Chester, PA

Built 1995 Load: 31.8 t ADT: 17,420

RAMP E TO 202 SB

Fair

Over: BRANCH OF TROUT RUN

TR 363 & TR 202 24K02, Chester, PA

Built 1967 Load: 31.8 t ADT: 14,108

SR 0080 EB

Fair

Over: SR 2015 & ABAND RR

HENDERSON EB, Clarion, PA

Built 1966 Load: 31.8 t ADT: 9,771

SR 153-PA 153

Fair

Over: WHITESIDE RUN

2 MI S HOUTZDALE, Clearfield, PA

Built 1931 Load: 31.8 t ADT: 2,308

Showing 3,601-3,650 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.