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

CORRIGAN DR

Fair

Over: CATFISH RUN

CT03 CATFISH RUN NO. 3, Allegheny, PA

Built 1920 Load: 73.5 t ADT: 6,994

SR 1036

Fair

Over: SIX MILE RUN

COALDALE BOROUGH, Bedford, PA

Built 1967 Load: 73.5 t ADT: 933

SR 4019

Fair

Over: BOBS CREEK

1.8 MI.NE.OF REYNOLDSDALE, Bedford, PA

Built 1955 Load: 73.5 t ADT: 867

SR0403

Fair

Over: PINE RUN

MARION CENTER NO.2, Indiana, PA

Built 1962 Load: 73.5 t ADT: 2,406

HONEYBROOK HAUL RD

Fair

Over: SR 0081 I-81

HAZLE TWP .5M N CNTY LINE, Luzerne, PA

Built 1967 Load: 73.5 t

MID-COUNTY EXWY.NB

Fair

Over: CHEMICAL ROAD/3368-D4

SW.OF TPK.EXIT 25 29H10, Montgomery, PA

Built 1990 Load: 73.5 t ADT: 46,328

MOUNT PLEASANT AVE

Fair

Over: WISSAHICKON CREEK

1.6 Mi NE PA-73 3257-C5, Montgomery, PA

Built 1931 Load: 73.5 t ADT: 7,035

TWP.RTE.T-544

Fair

Over: WILDCAT CREEK

3 SW LIVERPOOL/WILDCAT CK, Perry, PA

Built 1940 Load: 73.5 t ADT: 75

SR 0079

Fair

Over: SR 0019

AMWELL TOWNSHIP, Washington, PA

Built 1998 Load: 73.5 t ADT: 12,664

HILLBURNE ST

Fair

Over: IRWINS RUN

144 Hillburn St Ped Bridg, Allegheny, PA

Built 1995 Load: 74.4 t ADT: 10

SR 3017

Fair

Over: COVE RUN

.5 MI.E.OF MANNS CHOICE, Bedford, PA

Built 1937 Load: 74.4 t ADT: 92

SR 199

Fair

Over: CHEMUNG RIVER OVERFLOW C

ATHENS TWP 1MI N LR 1097, Bradford, PA

Built 1949 Load: 74.4 t ADT: 2,421

SR 3002

Fair

Over: BLACK CREEK

VILLAGE OF OVERTON, Bradford, PA

Built 1971 Load: 74.4 t ADT: 727

PA 53

Fair

Over: Lost Creek

0.1 MILE NORTH OF SR 1014, Cambria, PA

Built 1930 Load: 74.4 t ADT: 1,375

ON TSR 329

Fair

Over: MUSSER RUN

MCVEYTOWN, Mifflin, PA

Built 1957 Load: 74.4 t ADT: 464

SCHUYLKILL EXPWAY.

Fair

Over: RAMP D

WEST CONSHOHOCKEN 35D04, Montgomery, PA

Built 1951 Load: 74.4 t ADT: 65,374

SR 1003

Fair

Over: MUD CREEK

2 MI E OF WASHINGTONVILLE, Montour, PA

Built 1984 Load: 74.4 t ADT: 611

covered Bridge Rd

Fair

Over: BUFFALO CREEK

SAVILLE BRIDGE, Perry, PA

Built 1903 Load: 74.4 t ADT: 102

SR 3007

Fair

Over: OVER BOYDEN BROOK

WELLSBORO BORO, Tioga, PA

Built 1950 Load: 74.4 t ADT: 976

SR 2032

Fair

Over: MUDDY CREEK

BRIDGETON, York, PA

Built 1986 Load: 74.4 t ADT: 672

SR4008

Fair

Over: TRIB TO LITTLE PAINT CR

SHETLER RUN, Clarion, PA

Built 2004 Load: 74.4 t ADT: 72

WATER COMPANY RD

Fair

Over: TRIB TO WICONISCO CREEK

WATER COMPANY ROAD BRIDGE, Dauphin, PA

Built 1985 Load: 74.4 t ADT: 75

MCKNIGHT RD

Fair

Over: NELSON RUN ROAD

PITTSBURGH NELSON RUN RD., Allegheny, PA

Built 1946 Load: 75.3 t ADT: 46,134

CRANE AV

Fair

Over: SAW MILL RUN CREEK

023 Crane Ave Bridge, Allegheny, PA

Built 1983 Load: 75.3 t ADT: 5,200

PA TPK (I-76)

Fair

Over: SR 1004 LR 05018

EVERETT, Bedford, PA

Built 1939 Load: 75.3 t ADT: 35,070

SR 1001/BUS US 220

Fair

Over: KETTLE CREEK

.25 MI.S.OF GREENWOOD, Blair, PA

Built 1961 Load: 75.3 t ADT: 12,875

SR 6 GRAND ARMY HY

Fair

Over: OVER SPENCER CREEK

WAYNE TOWNSHIP, Erie, PA

Built 1991 Load: 75.3 t ADT: 5,473

SR 2023

Fair

Over: BENNINGTONS SPRING RUN

NORTH UNION TOWNSHIP, Fayette, PA

Built 1953 Load: 75.3 t ADT: 2,489

SR 3027

Fair

Over: SR 0040

SOUTH UNION TOWNSHIP, Fayette, PA

Built 1992 Load: 75.3 t ADT: 4,405

SR 3013

Fair

Over: DUNKARD CREEK

WAYNE TOWNSHIP, Greene, PA

Built 1990 Load: 75.3 t ADT: 122

PRESTON LANE

Fair

Over: SOUTH BR. SAUCON CREEK

NORTH OF CENTER VALLEY, Lehigh, PA

Built 1973 Load: 75.3 t ADT: 400

EAST MAIN STREET

Fair

Over: MILL CREEK

E. MAIN ST. OVER MILL CR., Luzerne, PA

Built 1910 Load: 75.3 t ADT: 1,400

SR 1017(LR 45070)

Fair

Over: MIDDLE BR.BRODHEAD CREEK

1.8 M. N.OF BUCKHILL FALL, Monroe, PA

Built 1946 Load: 75.3 t ADT: 1,002

MAIN STREET

Fair

Over: HOKENDAUQUA CREEK

1.5 M. SOUTH OF PA 329, Northampton, PA

Built 1965 Load: 75.3 t ADT: 1,000

US 209(LR 1103)

Fair

Over: WABASH CREEK

1 MI.WEST OF TAMAQUA, Schuylkill, PA

Built 1974 Load: 75.3 t ADT: 4,167

SR 4001

Fair

Over: POTTER BROOK

0.5 S OF POTTER BROOK, Tioga, PA

Built 1949 Load: 75.3 t ADT: 621

T-687

Fair

Over: YARNELL BROOK

1.2 MI S. ACADEMY CORNERS, Tioga, PA

Built 1985 Load: 75.3 t ADT: 25

TR 196 EASTON TPK

Fair

Over: MIDDLE CREEK

LAKE TWP 150 S TR 296, Wayne, PA

Built 1953 Load: 75.3 t ADT: 1,607

ARCH STREET

Fair

Over: AMTRAK;ACCESS ROAD

N.SIDE 30TH ST.STA3590A07, Philadelphia, PA

Built 1927 Load: 75.3 t ADT: 24,728

RT 0008 NB SB

Fair

Over: PINE CREEK

600SOUTH OF DUNCAN AVE., Allegheny, PA

Built 1959 Load: 76.2 t ADT: 19,057

MCKNIGHT RD

Fair

Over: MCKNIGHT RUN

@ INTER.W/BRAUNLICH DR., Allegheny, PA

Built 1946 Load: 76.2 t ADT: 42,967

PA TPK (I-76)

Fair

Over: TURTLE CREEK RR

NEAR ALLEGH-WESTMLD CO LN, Allegheny, PA

Built 1952 Load: 76.2 t ADT: 46,261

PA TPK (I-76)

Fair

Over: PA 56(LR 05047) & STREAM

WEST OF BEDFORD INTERCHGE, Bedford, PA

Built 1939 Load: 76.2 t ADT: 30,600

PA TPK (I-76)

Fair

Over: T-563

WILLOW HILL, Franklin, PA

Built 1939 Load: 76.2 t ADT: 21,433

SR 1025

Fair

Over: MUDDY CREEK

CUMBERLAND TOWNSHIP, Greene, PA

Built 1986 Load: 76.2 t ADT: 334

SR 2001

Fair

Over: BRANCH OF RUDOLPH RUN

PERRY TOWNSHIP, Greene, PA

Built 1920 Load: 76.2 t ADT: 13

PA 305

Fair

Over: E.BR.STANDING.STONE CR.

1.6 MILE EAST OF SR 1019, Huntingdon, PA

Built 1932 Load: 76.2 t ADT: 1,098

SR 1011

Fair

Over: MILL CREEK

1 MILE NORTH OF WESTVILLE, Jefferson, PA

Built 1956 Load: 76.2 t ADT: 134

BURNS RD

Fair

Over: JAMISON RUN

208010 OVER JAMISON RUN, Lawrence, PA

Built 1920 Load: 76.2 t ADT: 100

SR 4007 BEAR LAKE

Fair

Over: OVER PINE VALLEY BROOK

FREEHOLD TOWNSHIP, Warren, PA

Built 1931 Load: 76.2 t ADT: 456

Showing 12,051-12,100 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.