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

RIVER STREET

Poor

Over: LACKAWANNA RIVER

JESSUP BORO 50FT E WINT, Lackawanna, PA

Built 1970 Load: 19.1 t ADT: 100

EAST WASHINGTON ST

Poor

Over: NESHANNOCK CREEK

@ TR 108&168 INTERSECTION, Lawrence, PA

Built 1909 Load: 19.1 t ADT: 17,254

SR 4009

Poor

Over: NORFOLK SO.

PALMYRA BORO, Lebanon, PA

Built 1971 Load: 19.1 t ADT: 1,967

SR 4003 (LR 39048)

Poor

Over: JORDAN CREEK

KERNSVILLE, Lehigh, PA

Built 1929 Load: 19.1 t ADT: 6,052

SR 0081 I-81 SB

Poor

Over: JOHNSON ALLAN SPRING RUN

W-B TWP .2 M N EXIT 165, Luzerne, PA

Built 1966 Load: 19.1 t ADT: 25,843

T-576 BJ ROAD

Poor

Over: FOSTER BROOK

100 SOUTH OF SR 346, McKean, PA

Built 1980 Load: 19.1 t ADT: 70

SR 4021 ATLANTIC

Poor

Over: BLUFF RUN

SUGAR GROVE TOWNSHIP, Mercer, PA

Built 1952 Load: 19.1 t ADT: 520

PA 611

Poor

Over: BULGERS RUN

0.75 MI.S.OF TANNERSVILLE, Monroe, PA

Built 1942 Load: 19.1 t ADT: 12,938

SKIPPACK PIKE

Poor

Over: EAST BR. PERKIOMEN CREEK

SCHWENKSVILL 3141G1, Montgomery, PA

Built 1930 Load: 19.1 t ADT: 5,953

Rices Mill Road

Poor

Over: Tacony Creek

.7 Mi N PA-73 3370-G5, Montgomery, PA

Built 1914 Load: 19.1 t ADT: 6,455

PA 611 (LR 48027)

Poor

Over: OUGHOUGHTON CREEK

RICHMOND, Northampton, PA

Built 1926 Load: 19.1 t ADT: 3,458

CANAL ROAD

Poor

Over: DELAWARE CANAL

SOUTH OF RAUBSVILLE, Northampton, PA

Built 1832 Load: 19.1 t ADT: 200

T-441 STILES HILL

Poor

Over: GENESEE FORK PINE CREEK

AT JUNCTION SR 1003, Potter, PA

Built 1987 Load: 19.1 t ADT: 50

OLD COUNTRY LN

Poor

Over: COLD RUN CREEK

T-850 EAST OF HECLA, Schuylkill, PA

Built 1950 Load: 19.1 t ADT: 100

BRIDGE STREET

Poor

Over: MAHANOY CREEK

2ND ST. ASHLAND BORO, Schuylkill, PA

Built 1957 Load: 19.1 t ADT: 200

SR 4001

Poor

Over: MOORE RUN

1 MI.NE.OF BAKERSVILLE, Somerset, PA

Built 1938 Load: 19.1 t ADT: 569

SR 4013

Poor

Over: SPRUCE RUN

1 MI.W.OF GRAY, Somerset, PA

Built 1937 Load: 19.1 t ADT: 355

T634 COVERED BR RD

Poor

Over: BENS CREEK

1.2 MI.W.OF BENS CREEK, Somerset, PA

Built 1877 Load: 19.1 t ADT: 50

SR 0706 TR 706

Poor

Over: EAST BR WYALUSING CREEK

JESSUP TWP .2 M W SR 3029, Susquehanna, PA

Built 1929 Load: 19.1 t ADT: 1,273

SR 1008

Poor

Over: PETERS CREEK

UNION TOWNSHIP, Washington, PA

Built 1937 Load: 19.1 t ADT: 1,559

DONAHOE BRIDGE

Poor

Over: CROSS CREEK

AT INTERSECTION WITH SR50, Washington, PA

Built 1929 Load: 19.1 t ADT: 30

PORTER BRIDGE #7

Poor

Over: TENMILE CREEK TRIB

1200 SOUTH OF SR 2024, Washington, PA

Built 1942 Load: 19.1 t ADT: 20

NAVAJO ROAD

Poor

Over: TR. INDIAN ORCHARD BROOK

.1 MI NORTH OF SR 652, Wayne, PA

Built 1958 Load: 19.1 t ADT: 65

HOPKINS ROAD ("H")

Poor

Over: SUNNY BROOK

SOUTH OF ELLISON ROAD, Wayne, PA

Built 1956 Load: 19.1 t ADT: 75

T893 Gray Station

Poor

Over: MCGEE RUN

1 MILE SE OF BRENIZER, Westmoreland, PA

Built 1987 Load: 19.1 t ADT: 222

MCKELVEY ROAD

Poor

Over: MILL CREEK

OAK GROVE/WATERFORD, Westmoreland, PA

Built 1910 Load: 19.1 t ADT: 50

T622 BELL POINT RD

Poor

Over: BEAVER RUN

1000 SOUTH OF SR 66, Westmoreland, PA

Built 1920 Load: 19.1 t ADT: 100

T-309; SUNSET DR.

Poor

Over: SOUTH BRANCH CONEWAGO CR

2.9S HANOVER/S.BR.CONEWAG, York, PA

Built 1970 Load: 19.1 t ADT: 200

CAREY STREET

Poor

Over: SOLOMON CREEK

500 FT SOUTH OF ASHLEY ST, Luzerne, PA

Built 1930 Load: 19.1 t

Harkleroad Road

Poor

Over: Bear Run

1/2 mi NE of T-701/T-974, Indiana, PA

Built 1920 Load: 19.1 t ADT: 50

T-626 SPIKER ROAD

Poor

Over: ROUGH RUN

1.5 MI S of T-880, Butler, PA

Built 1978 Load: 19.1 t ADT: 100

RIVER ROAD

Poor

Over: LAUREL RUN

OUT. TO SCHUYLKILL RIVER, Berks, PA

Built 1832 Load: 19.1 t ADT: 500

T-338 Fall Run Rd

Poor

Over: Blue Hole Creek

3Mi NW of New Lexington, Somerset, PA

Built 1950 Load: 19.1 t ADT: 75

CONCORD RD T-536

Poor

Over: Short Creek

Morris TWP, Washington, PA

Built 1960 Load: 19.1 t ADT: 25

Ten School Road

Poor

Over: Spruce Run

Derry Township, Westmoreland, PA

Built 1901 Load: 19.1 t ADT: 50

BOWMANSVILLE RD

Poor

Over: MUDDY CREEK

1000 FT WEST OF PA 625, Lancaster, PA

Built 1973 Load: 19.1 t ADT: 100

TROUTBROOK RD

Poor

Over: TROUT BROOK

AT LOWER DEMUNDS RD, Luzerne, PA

Built 1986 Load: 19.1 t ADT: 150

US 209 BUS.(LR164)

Poor

Over: PA 33

PA33 INTERCHANGE, Monroe, PA

Built 1963 Load: 19.4 t ADT: 4,492

PA 394; SR 0394

Poor

Over: CONEWAGO CREEK

.75 MI. NE OF NEW CHESTER, Adams, PA

Built 1935 Load: 20.0 t ADT: 1,197

SR 3002

Poor

Over: ROCK CREEK

2 1/4 MI.S. OF BARLOW, Adams, PA

Built 1940 Load: 20.0 t ADT: 612

T-860 BEAGLE CLUB

Poor

Over: HULING RUN

1/4 mile north of T-419, Armstrong, PA

Built 1952 Load: 20.0 t ADT: 120

T-664 CLAAR RD.

Poor

Over: RYOT RUN

1.5 MI.W.OF RYOT, Bedford, PA

Built 1942 Load: 20.0 t ADT: 27

SR 1012

Poor

Over: BALD EAGLE CREEK

TYRONE BOROUGH, Blair, PA

Built 1933 Load: 20.0 t ADT: 2,367

T456 Old Mill Run

Poor

Over: MILL RUN

1 MI.W.OF ALTOONA, Blair, PA

Built 1957 Load: 20.0 t ADT: 622

T-876 ATHENS BR#5

Poor

Over: SATTERLEE CREEK

1.6 MI. E OF ATHENS BORO, Bradford, PA

Built 1920 Load: 20.0 t ADT: 50

DUBLIN ROAD

Poor

Over: MORRIS RUN

1MI.S.W.DUBLIN BOR 21J03, Bucks, PA

Built 1872 Load: 20.0 t ADT: 2,464

CALLOWHILL ROAD

Poor

Over: BR PLEASANT SPRING CREEK

AT BEDMINSTER RD. 21A02, Bucks, PA

Built 1907 Load: 20.0 t ADT: 5,773

HOLICONG ROAD T386

Poor

Over: TRIBUTARY PIDCOCK CREEK

.1MI.NW.OF 375 3036-G1, Bucks, PA

Built 1900 Load: 20.0 t ADT: 375

SR4004

Poor

Over: WOLF CREEK

CHRISTLEYS MILLS, Butler, PA

Built 1944 Load: 20.0 t ADT: 402

T-439 WATSON RD

Poor

Over: N BR SLIPPERY ROCK CREEK

0.1 MI W OF BLACK ROAD, Butler, PA

Built 1900 Load: 20.0 t ADT: 50

Showing 21,301-21,350 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.