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

SR2008

Fair

Over: LONG RUN

MUSHROOM FARM ROAD, Butler, PA

Built 1974 Load: 35.4 t ADT: 1,853

SR4007

Fair

Over: SR0422 EB&WB

WEST PARK RD NO.2, Butler, PA

Built 1969 Load: 35.4 t ADT: 1,637

SR 4010

Fair

Over: SLIPPERY ROCK CREEK

BOVARD, Butler, PA

Built 1993 Load: 35.4 t ADT: 1,096

T-348 E.LANCASTER

Fair

Over: YELLOW CREEK

BTW T336 & SR3025, Butler, PA

Built 1905 Load: 35.4 t ADT: 200

T-617 LOVE ROAD

Fair

Over: THORN RESERVOIR

0.9 MI WEST OF SR 1011, Butler, PA

Built 1978 Load: 35.4 t ADT: 300

PA 53

Fair

Over: KOKAMO CREEK

0.5 MILE SOUTH OF TR 22, Cambria, PA

Built 1983 Load: 35.4 t ADT: 5,477

US 219 NBL

Fair

Over: T418 PENSACOLA ROAD

1.6 MILE SOUTH OF US 22, Cambria, PA

Built 1966 Load: 35.4 t ADT: 6,345

US 219 SBL

Fair

Over: T418 PENSACOLA ROAD

1.5 MILE SOUTH OF US 22, Cambria, PA

Built 1965 Load: 35.4 t ADT: 6,296

PA 271

Fair

Over: W.BR.SUSQUEHANNA RIVER

0.1 MILE SOUTH OF TR 219, Cambria, PA

Built 1950 Load: 35.4 t ADT: 3,405

SR 1021

Fair

Over: DUTCH RUN

.5 MI.S.OF BEAVER VALLEY, Cambria, PA

Built 1965 Load: 35.4 t ADT: 1,759

SR 3039

Fair

Over: HINCKSTON RUN

VILLAGE OF FAIRVIEW, Cambria, PA

Built 1957 Load: 35.4 t ADT: 803

REAM PLACE

Fair

Over: SOLOMON RUN

JOHNSTOWN REAM PLACE, Cambria, PA

Built 1987 Load: 35.4 t ADT: 51

T-318

Fair

Over: NORTH CREEK

350 NORTH SR 0046 INTER, Cameron, PA

Built 1990 Load: 35.4 t ADT: 90

SR 2004 (LR 13014)

Fair

Over: FIRELINE CREEK

FIRELINE ROAD, Carbon, PA

Built 1950 Load: 35.4 t ADT: 2,084

SR 3006 (LR 13009)

Fair

Over: STEWART CREEK

HEMLOCK DRIVE, Carbon, PA

Built 1936 Load: 35.4 t ADT: 419

T-459 GRIST MILL

Fair

Over: QUAKAKE CREEK

GRIST MILL RD.N.OF SR4010, Carbon, PA

Built 1991 Load: 35.4 t ADT: 100

SR 26-PA 26

Fair

Over: NITTANY CREEK

3 MI N E BELLEFONTE, Centre, PA

Built 1967 Load: 35.4 t ADT: 10,985

SR 3049

Fair

Over: MOSHANNON CREEK

OSCEOLA MILLS, Centre, PA

Built 1932 Load: 35.4 t ADT: 2,393

SR 2004

Fair

Over: SPRING CREEK

OAK HALL, Centre, PA

Built 1948 Load: 35.4 t ADT: 230

T-532 RISHEL HILL

Fair

Over: LOGAN BRANCH

50 FT FROM SR 144, Centre, PA

Built 1993 Load: 35.4 t ADT: 550

30 BYPASS

Fair

Over: US ROUTE 322

NEAR DOWNINGTOWN 30D1, Chester, PA

Built 1961 Load: 35.4 t ADT: 64,245

US 202(SB) RAMP W

Fair

Over: RTE 30 RAMPS S & X

202/30 INTERCHANGE 22D10, Chester, PA

Built 1994 Load: 35.4 t ADT: 25,031

SCHUYLKILL ROAD

Fair

Over: STONY RUN CREEK

NEAR SPRING CITY 7J12, Chester, PA

Built 1942 Load: 35.4 t ADT: 15,159

KIRKLAND AVE(T387)

Fair

Over: ROUTE 100

2M.N.WEST CHESTER 32B2, Chester, PA

Built 1968 Load: 35.4 t ADT: 946

GLENCREST EAST RD.

Fair

Over: W BR BRANDYWINE CREEK

VALLEY TOWNSHIP 28J04, Chester, PA

Built 1923 Load: 35.4 t ADT: 3,775

AUBURN ROAD

Fair

Over: EAST BR WHITE CLAY CREEK

NEW GARDEN TWP. 54G01, Chester, PA

Built 1984 Load: 35.4 t ADT: 1,396

PA TPK (I-76)

Fair

Over: SR 0100

WEST DOWNINGTOWN INTERCHG, Chester, PA

Built 1950 Load: 35.4 t ADT: 46,178

PA TPK (I-76)

Fair

Over: PA TPK RP CD

DOWNINGTOWN INTERCHANGE, Chester, PA

Built 1950 Load: 35.4 t ADT: 47,120

PA TPK (I-76)

Fair

Over: T-616

EAST OF VALLEY FORGE PARK, Chester, PA

Built 1950 Load: 35.4 t ADT: 46,820

DOWLIN FORGE ROAD

Fair

Over: SHAMONA CREEK

NEAR DOWLIN 3471-G4, Chester, PA

Built 1915 Load: 35.4 t ADT: 2,866

SR 0080 EB

Fair

Over: SR 4005 & CANOE CREEK

CANOE CREEK EB, Clarion, PA

Built 1966 Load: 35.4 t ADT: 10,169

SR0368

Fair

Over: TRIB TO ALLEGHENY RIVER

PERRYVILLE, Clarion, PA

Built 1930 Load: 35.4 t ADT: 1,742

SR 120-PA 120

Fair

Over: BAKER RUN

GLEN UNION, Clinton, PA

Built 1968 Load: 35.4 t ADT: 2,002

SR 150-PA 150

Fair

Over: LAUREL RUN

4 MILE NE BEECH CREEK, Clinton, PA

Built 1934 Load: 35.4 t ADT: 5,533

SR 220-US 220

Fair

Over: SR 2006 & FISHING CREEK

CEDAR SPRINGS, Clinton, PA

Built 1968 Load: 35.4 t ADT: 6,690

S.R.118

Fair

Over: EAST BRANCH FISHING CRK

6 MILES N OF HARRINGTON, Columbia, PA

Built 1951 Load: 35.4 t ADT: 2,110

T415 CATAWISSA

Fair

Over: UNNAMED TRIB ROARING CR

1.1 MI NW OF SLABTOWN, Columbia, PA

Built 1941 Load: 35.4 t ADT: 50

SR 8 FRANKLIN ST.

Fair

Over: OVER OIL CREEK

CITY OF TITUSVILLE, Crawford, PA

Built 1940 Load: 35.4 t ADT: 4,638

SR 79 NB

Fair

Over: OVER T-611 MATT ROAD

HAYFIELD TOWNSHIP, Crawford, PA

Built 1969 Load: 35.4 t ADT: 7,350

SR 79 SB

Fair

Over: OVER T-611 MATT ROAD

HAYFIELD TOWNSHIP, Crawford, PA

Built 1969 Load: 35.4 t ADT: 7,557

SR 322 28TH DIV HW

Fair

Over: OVER B&LE RAILROAD

WEST FALLOWFIELD TOWNSHIP, Crawford, PA

Built 1971 Load: 35.4 t ADT: 3,658

SR 3023 WATSON RUN

Fair

Over: OVER WATSON RUN

VERNON TOWNSHIP, Crawford, PA

Built 1953 Load: 35.4 t ADT: 206

US 11; SR 0011

Fair

Over: HOGESTOWN RUN

HOGESTOWN, Cumberland, PA

Built 1941 Load: 35.4 t ADT: 10,825

I-81 NB; SR 0081

Fair

Over: 641; Trindle Rd

I-81 OVER PA 641, Cumberland, PA

Built 1963 Load: 35.4 t ADT: 27,884

PA 174; SR 0174

Fair

Over: YELLOW BREECHES CREEK

WALNUT BOTTOM, Cumberland, PA

Built 1938 Load: 35.4 t ADT: 1,890

PA TPK (I-76)

Fair

Over: LR21012 SR1007

SILVER SPRING TWP, Cumberland, PA

Built 1949 Load: 35.4 t ADT: 20,357

PINE SCHL RD T-683

Fair

Over: HUNTERS RUN

0.4 MI E OF SR 34, Cumberland, PA

Built 1990 Load: 35.4 t ADT: 624

I-81 NB; SR 0081

Fair

Over: INDUSTRIAL HIGHWAY

OVER INDUSTRIAL HWY., Dauphin, PA

Built 1975 Load: 35.4 t ADT: 30,456

I-81 SB; SR 0081

Fair

Over: SR 3015

1 MI. N. PROGRESS, Dauphin, PA

Built 1969 Load: 35.4 t ADT: 40,659

I-83; SR 0083

Fair

Over: Eliminated RR Tracks

CITY OF HARRISBURG, Dauphin, PA

Built 1961 Load: 35.4 t ADT: 72,252

Showing 6,101-6,150 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.