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

SPRING HOLLOW ROAD

Good

Over: STONY RUN

E PIKELAND TWP 3252-D6, Chester, PA

Built 1934 Load: 49.0 t ADT: 499

SR 2012

Good

Over: CLEARFIELD CREEK

FAUNCE, Clearfield, PA

Built 1990 Load: 49.0 t ADT: 183

FORK HILL ROAD

Good

Over: RT BR YOUNG WOMANS CREEK

500 NORTH OF RT YWC ROAD, Clinton, PA

Built 2009 Load: 49.0 t ADT: 35

SR 79 NB

Good

Over: OVER ROCK CREEK

GREENWOOD TOWNSHIP, Crawford, PA

Built 1969 Load: 49.0 t ADT: 6,476

SR 79 SB

Good

Over: OVER ROCK CREEK

GREENWOOD TOWNSHIP, Crawford, PA

Built 1969 Load: 49.0 t ADT: 6,474

SR 114 LR 416

Good

Over: PA TPK (I-76)

UPPER ALLEN TWP, Cumberland, PA

Built 1950 Load: 49.0 t ADT: 14,195

LEIDIGH BDG T-550

Good

Over: YELLOW BREECHES CREEK

2E BOIL SPRNG/YEL.BRCH.CR, Cumberland, PA

Built 1954 Load: 49.0 t ADT: 1,240

SR 2005

Good

Over: TOBY CREEK

2 MI SW DAGUS MINES, Elk, PA

Built 1993 Load: 49.0 t ADT: 286

SR3009 (Oregon St)

Good

Over: Steigers Run

AT MERCERSBURG, Franklin, PA

Built 1968 Load: 49.0 t ADT: 1,460

PA 915

Good

Over: SIDELING HILL CREEK

0.4 MILE SOUTH OF SR 4013, Fulton, PA

Built 1996 Load: 49.0 t ADT: 993

PA 829

Good

Over: JUNIATA RIVER

0.2 MILE SOUTH OF TR 22, Huntingdon, PA

Built 1992 Load: 49.0 t ADT: 1,966

SR 0376 EB

Good

Over: US 422 EB WB

I-376 EB OVER BUS. 422, Lawrence, PA

Built 1975 Load: 49.0 t ADT: 8,615

SR 0376 EB WB

Good

Over: US 422 EB WB

I-376 WB OVER BUS. 422, Lawrence, PA

Built 1975 Load: 49.0 t ADT: 8,293

BROAD STREET

Good

Over: HAZEL DYKE

BROAD ST. HAZELDYKE, Lebanon, PA

Built 1987 Load: 49.0 t ADT: 150

I-78(LR 1045)

Good

Over: SR 2023(LR 39107)

I-78 OVER VERA CRUZ RD., Lehigh, PA

Built 1989 Load: 49.0 t ADT: 70,840

PA 378(LR1007)

Good

Over: EARTH EMBANKMENT

CONN.TO HILL TO HILL BRI., Lehigh, PA

Built 1967 Load: 49.0 t ADT: 35,929

SR2041 MDDLEBRG RD

Good

Over: WRIGHT CREEK

DENNISON TWP 2 M N TR 940, Luzerne, PA

Built 1954 Load: 49.0 t ADT: 1,233

SR 3001 ROBERT ST

Good

Over: S BRANCH NEWPORT CREEK

NEWPORT TWP .2M N SR 3003, Luzerne, PA

Built 1955 Load: 49.0 t ADT: 4,161

MAIN PARK ROAD

Good

Over: LAKE JEAN OUTLET

1300 FT SE OF SR 487, Luzerne, PA

Built 1950 Load: 49.0 t ADT: 600

SR 0044

Good

Over: W.B. SUSQUEHANNA RIVER

ANTES FORT RIVER BRIDGE, Lycoming, PA

Built 1986 Load: 49.0 t ADT: 4,639

SR 1005

Good

Over: PLUNKETTS CREEK

1 MI S OF PROCTOR, Lycoming, PA

Built 1996 Load: 49.0 t ADT: 331

SR 2039

Good

Over: OVER MILL CREEK

0.5 MI S OF WARRENSVILLE, Lycoming, PA

Built 1960 Load: 49.0 t ADT: 953

SR 2077

Good

Over: BEAVER DAM RUN

1 MI NORTH OF LAIRDVILLE, Lycoming, PA

Built 1985 Load: 49.0 t ADT: 187

SR 0015

Good

Over: OVER SR 0973

PERRYVILLE, Lycoming, PA

Built 1993 Load: 49.0 t ADT: 9,450

US 15

Good

Over: WOLF RUN

1MILE S.OF TROUT RUN, Lycoming, PA

Built 1995 Load: 49.0 t ADT: 18,271

SR 1009

Good

Over: BRANCH BELL RUN

4 MI S MYRTLE, McKean, PA

Built 1990 Load: 49.0 t ADT: 234

SR 1014 GEORGETOWN

Good

Over: OVER MILL CREEK

NEW LEBANON BOROUGH, Mercer, PA

Built 1960 Load: 49.0 t ADT: 851

BRIDGE 2110 T-786

Good

Over: OVER YELLOW CREEK

CLARK ROAD JACKSON TWP., Mercer, PA

Built 1972 Load: 49.0 t ADT: 197

BRIDGE 908 T-614

Good

Over: OVER LITTLE SHENANGO R.

FREELAND RD. OTTER CREEK, Mercer, PA

Built 1984 Load: 49.0 t ADT: 511

SR 44

Good

Over: W BR CHILLISQUAQUE CR

VILLAGE OF EXCHANGE, Montour, PA

Built 1996 Load: 49.0 t ADT: 1,109

SR 1006

Good

Over: WARRIOR RUN CREEK

3 MI NORTH MCEWENSVILLE, Northumberland, PA

Built 1983 Load: 49.0 t ADT: 525

PA 233; SR 0233

Good

Over: SHERMANS CREEK

1 MI. W OF LANDISBURG, Perry, PA

Built 1939 Load: 49.0 t ADT: 1,546

ON TSR 400

Good

Over: ALLEGHENY RIVER

BURTVILLE, Potter, PA

Built 1996 Load: 49.0 t ADT: 221

BLACK CREEK ROAD

Good

Over: MAHANOY CREEK

1275 FT WEST OF SR 901, Schuylkill, PA

Built 1924 Load: 49.0 t ADT: 100

SR 3025

Good

Over: BR.COXES CREEK

0.6 MILES SOUTH OF SR 31, Somerset, PA

Built 1998 Load: 49.0 t ADT: 1,354

PA TPK (I-76)

Good

Over: GLADES CREEK

NEAR BROTHERTON, Somerset, PA

Built 2004 Load: 49.0 t ADT: 29,452

SR 4002 (LR 58042)

Good

Over: CATLIN HOLLOW CREEK

3 MI E OF WELLSBORO, Tioga, PA

Built 1953 Load: 49.0 t ADT: 2,107

T-336 CTY BR #18

Good

Over: COWANESQUE RIVER

1.7 MI WEST OF WESTFIELD, Tioga, PA

Built 1989 Load: 49.0 t ADT: 50

BRANDON ROAD

Good

Over: N. BR. BUFFALO CREEK

500 N OF OLD SHINGLE RD, Union, PA

Built 2008 Load: 49.0 t ADT: 25

SR 3007 SCRUBGRASS

Good

Over: OVER LT SCRUBGRASS CK

SCRUBGRASS TOWNSHIP, Venango, PA

Built 1996 Load: 49.0 t ADT: 253

SR 3043

Good

Over: TRIBUTARY SEWICKLEY CK.

SOUTH HUNTINGDON TWP., Westmoreland, PA

Built 1993 Load: 49.0 t ADT: 741

PA TPK (PA 66)

Good

Over: SR 0130

HEMPFIELD TWP, Westmoreland, PA

Built 1993 Load: 49.0 t ADT: 10,429

SR 2103

Good

Over: BRANCH OF DEER CREEK

1 MI.S.W. OF STEWARTSTOWN, York, PA

Built 1939 Load: 49.0 t ADT: 695

T619; NORRIS ROAD

Good

Over: ORSON RUN

.6NE WOODBINE/ORSON RUN, York, PA

Built 1994 Load: 49.0 t ADT: 271

17TH STREET S.B.

Good

Over: VINE STREET EXPRESSWAY

17TH & VINE 3590 D07, Philadelphia, PA

Built 1959 Load: 49.0 t ADT: 9,244

LINDBERGH BLVD.

Good

Over: SEPTA AIRPORT H S LINE

NEAR 58TH STREET 3699E02, Philadelphia, PA

Built 1983 Load: 49.0 t ADT: 17,202

Wissahickon Drive

Good

Over: Branch Wissahickon Crk

S of Wises Mill Rd 16H06, Philadelphia, PA

Built 1979 Load: 49.0 t ADT: 200

BRIDGE 608 T-874

Good

Over: OVER NORTH DEER CREEK

LOWER RD. FRENCH CREEK, Mercer, PA

Built 1997 Load: 49.0 t ADT: 24

SR 0006 TR 6

Good

Over: COGEN ACCESS DRIVE

ARCHBALD BO .5M W SR 1012, Lackawanna, PA

Built 1996 Load: 49.0 t ADT: 19,492

SR 0006 TR 6 WB

Good

Over: SR1012 SALEM ROAD EXIT 4

ARCHBALD BORO OVER SR1012, Lackawanna, PA

Built 1995 Load: 49.0 t ADT: 9,369

Showing 18,701-18,750 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.