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 3029

Fair

Over: FOREST LAKE CREEK

FOREST LAKE TP 3M N TR706, Susquehanna, PA

Built 1939 Load: 53.5 t ADT: 321

T-312 CTY BR No.3B

Fair

Over: PINE CREEK

0.1 MI NORTH OF REXFORD, Tioga, PA

Built 1985 Load: 53.5 t ADT: 50

SR 6 GRAND ARMY HY

Fair

Over: ALLEGHENY & EASTERN RR

CONEWANGO TOWNSHIP, Warren, PA

Built 1976 Load: 53.5 t ADT: 10,008

T-435 PULFER HILL

Fair

Over: OVER ANDREWS RUN

PITTSFIELD TOWNSHIP, Warren, PA

Built 1963 Load: 53.5 t ADT: 100

SR 0079

Fair

Over: SR 1009

CHARTIERS & S. STRABANE, Washington, PA

Built 1964 Load: 53.5 t ADT: 24,317

SR 1009

Fair

Over: CHARTIERS CREEK

NORTH STRABANE TOWNSHIP, Washington, PA

Built 1974 Load: 53.5 t ADT: 25,204

SR 1049

Fair

Over: BR OF LITTLE CHARTIERS C

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1943 Load: 53.5 t ADT: 645

SR 2041

Fair

Over: FISHPOT RUN

DEEMSTON BOROUGH, Washington, PA

Built 1981 Load: 53.5 t ADT: 870

SR 4025

Fair

Over: BRANCH OF CROSS CREEK

JEFFERSON TOWNSHIP, Washington, PA

Built 1922 Load: 53.5 t ADT: 150

SR 2073; MALDEN DR

Fair

Over: SR 2073;PA TPK (TOLL 43)

SOUTH OF CALIFORNIA, Washington, PA

Built 1990 Load: 53.5 t ADT: 4,242

FINLEY ROAD

Fair

Over: CEDAR CREEK

HALF MILE WEST OF SR51, Westmoreland, PA

Built 1993 Load: 53.5 t ADT: 910

WEST KING STREET

Fair

Over: CODORUS CREEK

W KING ST OVER CODORUS CR, York, PA

Built 1954 Load: 53.5 t ADT: 3,480

INTERSTATE 95 S.B.

Fair

Over: CALLOWHILL STREET

NEAR RACE STREET3590H07, Philadelphia, PA

Built 1973 Load: 53.5 t ADT: 66,507

RAMP CLW CITY LINE

Fair

Over: LR67058 RAMP B

US1-RAMP B 3479J10, Philadelphia, PA

Built 1972 Load: 53.5 t ADT: 8,356

SR 346-PA 346

Fair

Over: TUNUNGWANT CREEK

BRADFORD, McKean, PA

Built 1997 Load: 53.5 t ADT: 9,944

T-569 FIDDLER HILL

Fair

Over: OVER MATTHEWS RUN

SUGAR GROVE TOWNSHIP, Warren, PA

Built 1998 Load: 53.5 t ADT: 80

T-343 SUSQ RD

Fair

Over: SHEPPARD RUN

200 NORTH OF E WARREN RD, McKean, PA

Built 1995 Load: 53.5 t ADT: 100

T-362 WETZEL ROAD

Fair

Over: LONG RUN

0.9 MILE EAST OF SALONA, Clinton, PA

Built 1920 Load: 53.5 t ADT: 50

SR 1014

Fair

Over: ALDER RUN

2 MI NW KYLERTOWN, Clearfield, PA

Built 2001 Load: 53.5 t ADT: 308

T481 BOYER MILL RD

Fair

Over: CONOCOCHEAGUE CREEK

950 FT S OF MILL ROAD, Franklin, PA

Built 2003 Load: 53.5 t ADT: 2,250

UNION CHURCH ROAD

Fair

Over: POWELL CREEK

1500 FT SE OF SR 4013, Dauphin, PA

Built 2004 Load: 53.5 t ADT: 50

SR1010

Fair

Over: SOUTH BRANCH BEAR CREEK

WEST OF KARNS CITY, Butler, PA

Built 2004 Load: 53.5 t ADT: 882

CALVARY ROAD

Fair

Over: MAPLE CREEK

CALVARY ROAD BRIDGE, Washington, PA

Built 2004 Load: 53.5 t ADT: 100

T330 Sideling Hill

Fair

Over: E. BR. SIDELING HILL CRK

0.5 MI SE OF PURCELL, Bedford, PA

Built 2006 Load: 53.5 t ADT: 20

SR 51 North Bound

Fair

Over: SR 837 NSRR Local Rd.

Elizabeth Bridge, Allegheny, PA

Built 1951 Load: 53.5 t ADT: 15,025

T-461 Fairview Rd

Fair

Over: Little Marsh Creek

375 ft SE of SR 1002, Centre, PA

Built 1965 Load: 53.5 t ADT: 100

OLD VALLEY RD

Fair

Over: MEADOW BROOK

1.2 MI NE SR611 3371-C3, Montgomery, PA

Built 1935 Load: 53.5 t ADT: 600

Industrial Park Dr

Fair

Over: Red Run Tributary

1.5 MI WEST OF PA611, Monroe, PA

Built 1998 Load: 53.5 t ADT: 350

DIAMOND ST (T-519)

Fair

Over: MOUNTAIN RUN

0.5 MI N OF SR 255, Clearfield, PA

Built 1900 Load: 54.1 t ADT: 45

SR 1018

Fair

Over: CONEWAGO CREEK

NW OF ABBOTTSTOWN, Adams, PA

Built 1962 Load: 54.4 t ADT: 1,153

SR 28 NB

Fair

Over: BRIDGE ST.

SR 28 N.B. OVER BRIDGE ST, Allegheny, PA

Built 1962 Load: 54.4 t ADT: 32,128

ALLEGHENY VAL. EX

Fair

Over: CRAWFORD RUN RD/CRK

0.4 MI N OF SR 28 EXIT 13, Allegheny, PA

Built 1976 Load: 54.4 t ADT: 21,736

PINEY FORK RD

Fair

Over: PINEY FORK CREEK

1/2 MI.N.W.OF SR 3015, Allegheny, PA

Built 1974 Load: 54.4 t ADT: 675

PINE CREEK RD

Fair

Over: LITTLE PINE CREEK

1/2 MILE FR WETZEL RD., Allegheny, PA

Built 1962 Load: 54.4 t ADT: 2,753

PA TPK (I-76)

Fair

Over: T-423 Abers Creek Road

NEAR ALLEGH-WESTMLD CO LN, Allegheny, PA

Built 1952 Load: 54.4 t ADT: 46,261

CENTRE AV

Fair

Over: EAST BUSWAY & N-S RR

P50001 CENTRE AVE-EB0203, Allegheny, PA

Built 1979 Load: 54.4 t ADT: 5,500

RAMP D

Fair

Over: 4TH AVE PARKING LOT

Tarentum Bridge, Allegheny, PA

Built 1952 Load: 54.4 t ADT: 1,377

SR2058

Fair

Over: CARNAHAN RUN

CARNAHAN RUN NO.2, Armstrong, PA

Built 1992 Load: 54.4 t ADT: 81

T-562 EVERGREEN RD

Fair

Over: BRADY RUN

2000 feet n. of sr 0066, Armstrong, PA

Built 1997 Load: 54.4 t ADT: 303

SR 0351

Fair

Over: PA TURNPIKE (376 EB-WB)

N. of TPK 76 & 376 Intr, Beaver, PA

Built 1992 Load: 54.4 t ADT: 1,592

US 30 (WBL)

Fair

Over: RAYSTOWN BR.JUNIATA RIV.

16 FEET EAST OF TR 326, Bedford, PA

Built 1935 Load: 54.4 t ADT: 9,597

SR 4009

Fair

Over: DUNNINGS CREEK

CESSNA, Bedford, PA

Built 1948 Load: 54.4 t ADT: 1,287

SR 73(LR 197)

Fair

Over: TRIB. TO IRONSTONE CREEK

3 MI NW OF BOYERTOWN, Berks, PA

Built 1949 Load: 54.4 t ADT: 8,562

US 222 NB(LR157)

Fair

Over: SR 8015(RAMP G)

NORTH END OF BYPASS, Berks, PA

Built 1972 Load: 54.4 t ADT: 10,247

SR 2036(LR 06154)

Fair

Over: MANATAWNY CREEK

MANATAWNY ROAD, Berks, PA

Built 1963 Load: 54.4 t ADT: 3,316

PRENDERGAST RD

Fair

Over: MILL RACE

400 FT. WEST OF SR 3055, Berks, PA

Built 1989 Load: 54.4 t ADT: 500

CREAMERY ROAD

Fair

Over: MILL CREEK

N. & W. OF ST. MICHAELS, Berks, PA

Built 1988 Load: 54.4 t ADT: 75

SR 1003

Fair

Over: BRUSH RUN

HOLLIDAYSBURG, Blair, PA

Built 1934 Load: 54.4 t ADT: 1,872

NEW US-1 BY-PASS

Fair

Over: TRENTON AVENUE;RTE.1

S.WOOLSTON DRIVE 38G07, Bucks, PA

Built 1985 Load: 54.4 t ADT: 56,629

THATCHER ROAD

Fair

Over: TOHICKON CREEK

EAST QUAKERTOWN 14E01, Bucks, PA

Built 1973 Load: 54.4 t ADT: 1,867

Showing 11,051-11,100 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.