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 1031

Good

Over: Branch of Galley Run

N of Connellsville, Fayette, PA

Built 2009 Load: 55.3 t ADT: 559

SR 0040

Good

Over: Branch of Buffalo Creek

0.05 mi W of SR 0221, Washington, PA

Built 2010 Load: 55.3 t ADT: 5,086

Twin Bridge Ln Ex

Good

Over: E. Br. White Clay Creek

At Clay Creek Rd 3910-E3, Chester, PA

Built 1998 Load: 55.3 t ADT: 250

SR3027

Good

Over: CONNOQUEN. CR & B&P RR

0.1 MI. N. SR 68 INTER., Butler, PA

Built 2010 Load: 55.3 t ADT: 2,915

SR 44

Good

Over: OVER UPR PINE BOTTOM RUN

4 MILES NW OF WATERVILLE, Lycoming, PA

Built 2011 Load: 55.3 t ADT: 371

T-444 DUFF RD

Good

Over: N.Br of Browns Run

German Township, Fayette, PA

Built 1955 Load: 55.3 t ADT: 50

LAKE STREET

Good

Over: NSRC

1 MI NW OF SR 18, Erie, PA

Built 2019 Load: 55.3 t ADT: 50

T-347 E WARREN RD

Good

Over: E BR TUNUNGWANT CREEK

1500 FT EAST OF SR 219, McKean, PA

Built 2023 Load: 55.3 t ADT: 200

CREEK ROAD

Good

Over: EAST BR RED CLAY CREEK

1.5MI.N.DELAWARE 47H9, Chester, PA

Built 1938 Load: 55.4 t ADT: 2,680

Nashua Rd

Good

Over: Shenango River

1.5 MI W of RT 18, Lawrence, PA

Built 2010 Load: 55.7 t ADT: 413

Saw Mill Run Blvd

Good

Over: Weyman Run

120 south of Provost Rd, Allegheny, PA

Built 2015 Load: 55.7 t ADT: 22,106

SR 155-PA 155

Good

Over: Rock Run

3 MI SE LARABEE, McKean, PA

Built 2017 Load: 55.7 t ADT: 2,131

I-76(RMPS K & L)

Good

Over: PACKER AVENUE

RAMP K-L 37D06, Philadelphia, PA

Built 1957 Load: 56.1 t ADT: 6,937

Pike Run Dr

Good

Over: Pike Run

WEST PIKE RUN TOWNSHIP, Washington, PA

Built 2017 Load: 56.1 t ADT: 198

RAYMOND SHAFER HW

Good

Over: NOBLESTOWN RD.

I 79 SB OVER SR 3048, Allegheny, PA

Built 1972 Load: 56.2 t ADT: 35,339

COVE RUN RD

Good

Over: DEER CREEK

300S.W.OF TWP.RD.650, Allegheny, PA

Built 1962 Load: 56.2 t ADT: 1,202

T654 CREEK ROAD

Good

Over: WILLS HILL RUN

HYNDMAN, Bedford, PA

Built 1954 Load: 56.2 t ADT: 291

EASTON ROAD

Good

Over: TOHICKON CREEK

2MI.S.OTTSVILLE 16J01, Bucks, PA

Built 1950 Load: 56.2 t ADT: 13,826

OXFORD ROAD

Good

Over: WEST BRANCH BIG ELK CR.

NEAR OXFORD 52B2, Chester, PA

Built 1989 Load: 56.2 t ADT: 2,624

MT PLEASANT ROAD

Good

Over: FRENCH CREEK

S. COVENTRY TWP 05H11, Chester, PA

Built 1998 Load: 56.2 t ADT: 357

BRIDGE STREET

Good

Over: AMTRAK (HBSG. BRANCH)

2000 S OF RT 30 3474-J5, Chester, PA

Built 1991 Load: 56.2 t ADT: 1,500

SR 1002 GOSPLE HL.

Good

Over: OVER ACKER RUN

VENANGO TOWNSHIP, Crawford, PA

Built 1938 Load: 56.2 t ADT: 939

US 322; SR 0322

Good

Over: Swatara Creek

Hummelstown, Dauphin, PA

Built 1953 Load: 56.2 t ADT: 45,603

SR 8007 RAMP B

Good

Over: T-432 CRUMS MILL RD.

1 MI. N. PROGRESS, Dauphin, PA

Built 1969 Load: 56.2 t ADT: 15,904

SR 4003

Good

Over: WEST BRANCH CLARION R.

3 MI N JOHNSONBURG, Elk, PA

Built 1989 Load: 56.2 t ADT: 658

SR 89

Good

Over: OVER FRENCH CREEK BRANCH

CONCORD TOWNSHIP, Erie, PA

Built 1977 Load: 56.2 t ADT: 723

SR 832 PENINSULA D

Good

Over: OVER NS & CSX RAILROAD

MILL CREEK TOWNSHIP, Erie, PA

Built 1996 Load: 56.2 t ADT: 16,654

SR 3001 GRIFFEY RD

Good

Over: OVER CONNEAUT CREEK W.BR

CONNEAUT TOWNSHIP, Erie, PA

Built 1996 Load: 56.2 t ADT: 479

T-753 DUTTON ROAD

Good

Over: EIGHT MILE CREEK

600 FT SW OF HIGHMEYER RD, Erie, PA

Built 1993 Load: 56.2 t ADT: 115

SR 8170 WB

Good

Over: OVER T-666 ROHL ROAD

GREENFIELD TOWNSHIP, Erie, PA

Built 1985 Load: 56.2 t ADT: 4,041

T381 BLAIRS HILL R

Good

Over: FOSTER CREEK

1.6 MI.E.OF SIPES MILL, Fulton, PA

Built 1953 Load: 56.2 t ADT: 69

2001 Sleepy Hollow

Good

Over: OCTORARO CREEK

S of 272 off Lil Brittain, Lancaster, PA

Built 1947 Load: 56.2 t ADT: 344

S.R. 2014

Good

Over: CARPENTERS RUN

HALLS STATION, Lycoming, PA

Built 1996 Load: 56.2 t ADT: 7,589

MILL ROAD

Good

Over: INDIAN CREEK / 30300J3

NR.N.E.EXTEN.TPK. 15D01, Montgomery, PA

Built 1992 Load: 56.2 t ADT: 2,486

METZ ROAD

Good

Over: TOWAMENCIN CREEK

1.20 MI NE OF SR 0073, Montgomery, PA

Built 2002 Load: 56.2 t ADT: 1,602

MORRIS ROAD LR 460

Good

Over: WEST BRANCH SKIPPACK CR

0.9 Mi SW PA-63 3030-J10, Montgomery, PA

Built 2005 Load: 56.2 t ADT: 1,000

RAMP D TO(SB)I-476

Good

Over: GERMANTOWN PIKE/ 3368-E3

SOUTH TPK.EXT.25 29J10, Montgomery, PA

Built 1989 Load: 56.2 t ADT: 7,630

PA 403

Good

Over: STONY CREEK

BENSON BORO, Somerset, PA

Built 1994 Load: 56.2 t ADT: 1,610

SR 4018

Good

Over: OVER LICK CREEK

3.5 MI.NW. OF DUSHORE, Sullivan, PA

Built 1985 Load: 56.2 t ADT: 336

SR 249

Good

Over: TRIB COWANESQUE RIVER

3 MI E OF WESTFIELD, Tioga, PA

Built 1993 Load: 56.2 t ADT: 1,104

SR 4012

Good

Over: SHADIGEE CREEK

STARRUCCA B 1.5M E SR4014, Wayne, PA

Built 1992 Load: 56.2 t ADT: 150

29TH STREET

Good

Over: AMTRAK N.E.C.

GLENWOOD & SEDGLEY3590A03, Philadelphia, PA

Built 2004 Load: 56.2 t ADT: 5,217

SR 3005

Good

Over: NICHOLS RUN

2 MI. NW OF JERSEY SHORE, Lycoming, PA

Built 1997 Load: 56.2 t ADT: 570

SR 0084 I-84 EB

Good

Over: SR 8024 FROM 81N TO 6E

DUNMORE BORO OVER SR 8024, Lackawanna, PA

Built 1999 Load: 56.2 t ADT: 23,400

SR 2015 GRUNDERVIL

Good

Over: OVER SILL RUN

PLEASANT TOWNSHIP, Warren, PA

Built 1999 Load: 56.2 t ADT: 8

SR 4002(LR 45040)

Good

Over: EMERALD LAKE

LONG POND RD EMERALD LAKE, Monroe, PA

Built 2000 Load: 56.2 t ADT: 3,645

RAMP A-1 3366G07

Good

Over: RAMP B

.5MI SE TPK. EXIT 24, Montgomery, PA

Built 2003 Load: 56.2 t ADT: 9,181

PA TPK (TOLL 43)

Good

Over: SR 0136 MF-309

MONONGAHELA ROUTE 136 INT, Washington, PA

Built 2001 Load: 56.2 t ADT: 5,533

PA TPK TOLL 43

Good

Over: SR 0136

MONONGAHELA ROUTE 136 INT, Washington, PA

Built 2001 Load: 56.2 t ADT: 5,633

SR 2014 SCRUBGRASS

Good

Over: OVER MILL CREEK

FINDLEY TOWNSHIP, Mercer, PA

Built 2005 Load: 56.2 t ADT: 1,673

Showing 19,551-19,600 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.