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

T-464 (CALEDONIA)

Poor

Over: BENNETT BR SINNEMAHONING

300 FT S OF INT SR 555, Elk, PA

Built 1937 Load: 13.6 t ADT: 50

T-480 OLD RTE 99

Poor

Over: LAMSON RUN

1700 N OF STANCLIFF RD, Erie, PA

Built 1913 Load: 13.6 t ADT: 610

T-573 WILSON ROAD

Poor

Over: THREE SPRINGS CREEK

2 MI.SW.OF ROCKHILL, Huntingdon, PA

Built 1940 Load: 13.6 t ADT: 25

T570 PENN WOODS RD

Poor

Over: SUGAR GROVE RUN

2 MI.N.OF MILL CREEK, Huntingdon, PA

Built 1972 Load: 13.6 t ADT: 12

T303 PLANK RD WEST

Poor

Over: LEHIGH RIVER

CLIFTON .5 MI E SR 2013, Lackawanna, PA

Built 1956 Load: 13.6 t ADT: 40

BROADWAY STREET

Poor

Over: LACKAWANNA RIVER

200 WEST OF S WYOMING ST, Lackawanna, PA

Built 1970 Load: 13.6 t ADT: 10,700

GOERS HILL ROAD

Poor

Over: WHITE OAK RUN

ARCHBALD .1 MI N SALEM ST, Lackawanna, PA

Built 1908 Load: 13.6 t ADT: 200

T963 GEHMN SCHL RD

Poor

Over: LITTLE MUDDY CREEK

1300 FT WEST OF 897, Lancaster, PA

Built 1967 Load: 13.6 t ADT: 310

GRIMM RD

Poor

Over: POTTER RUN

037002 WASHINGTON TWP, Lawrence, PA

Built 1922 Load: 13.6 t ADT: 50

T-325 Michters Rd.

Poor

Over: HAMMER CREEK

1.9SE LEB. RESVR/HAMMERCR, Lebanon, PA

Built 1925 Load: 13.6 t ADT: 100

YORDYS BRIDGE ROAD

Poor

Over: SWATARA CREEK

1 MI N OF SR 934, Lebanon, PA

Built 1924 Load: 13.6 t ADT: 200

SR 0080 I-80 EB

Poor

Over: SR 0081 I-81 EXIT 151A

BUTLER TWP OVER I-81, Luzerne, PA

Built 1965 Load: 13.6 t ADT: 10,082

SR1014 OVERLOOK RD

Poor

Over: SR 0309 TR 309

DALLAS TWP OVER TR 309, Luzerne, PA

Built 1940 Load: 13.6 t ADT: 1,177

T387 BERGER HOLLOW

Poor

Over: S BR KNAPP CREEK

200 FT NW OF SR 246, McKean, PA

Built 1950 Load: 13.6 t ADT: 10

SR 3022 RUTLEDGE R

Poor

Over: BOOTH RUN

SOUTH PYMATUNING TOWNSHIP, Mercer, PA

Built 1941 Load: 13.6 t ADT: 240

WILKE ROAD (T-539)

Poor

Over: POCONO CREEK

0.5 M. N OF SR 4006, Monroe, PA

Built 1955 Load: 13.6 t ADT: 50

MIDDLETOWN ROAD

Poor

Over: NANCY RUN

W OF SR 3007, Northampton, PA

Built 1958 Load: 13.6 t ADT: 400

MALE ROAD

Poor

Over: TRIB.TO BUSHKILL CREEK.

MALE ST. IN WIND GAP, Northampton, PA

Built 1960 Load: 13.6 t ADT: 1,384

KENNEDY VALLEY RD

Poor

Over: MCCABE RUN

2.5 SW BRIDGEPORT/MACCABE, Perry, PA

Built 1977 Load: 13.6 t ADT: 105

T406 HENDERSHOT RD

Poor

Over: DECKER CREEK

200 S OF KIMBLES RD, Pike, PA

Built 1956 Load: 13.6 t ADT: 50

T417 CROSS FORK RD

Poor

Over: WINDFALL RUN

3.5 MI NORTH OF SR 144, Potter, PA

Built 1955 Load: 13.6 t ADT: 60

PINE VALLEY RD

Poor

Over: INDIAN RUN

SOUTH OF KEPNER, Schuylkill, PA

Built 1965 Load: 13.6 t ADT: 400

CHURCH ROAD

Poor

Over: DEEP CREEK

NE OF VALLEY VIEW, Schuylkill, PA

Built 1990 Load: 13.6 t ADT: 300

PINE DRIVE

Poor

Over: PINE CREEK

HEGINS T520 AT PINE CREEK, Schuylkill, PA

Built 1930 Load: 13.6 t ADT: 150

RIDGE ROAD

Poor

Over: LOCUST CREEK

NW OF TUSCARORA OFF T-497, Schuylkill, PA

Built 1950 Load: 13.6 t ADT: 20

SR 1017

Poor

Over: BREASTWORK RUN

1.7 MI.NW. NEW BALTIMORE, Somerset, PA

Built 1937 Load: 13.6 t ADT: 87

WALNUT STREET

Poor

Over: FLAUGHERTY CREEK

MEYERSDALE BOROUGH, Somerset, PA

Built 1989 Load: 13.6 t ADT: 50

22ND STREET

Poor

Over: SEESE RUN

WINDBER 22ND STREET, Somerset, PA

Built 1950 Load: 13.6 t ADT: 100

SR 0367 TR 367

Poor

Over: BRANCH TUSCARORA CREEK

AUBURN TWP 200 N SR 3004, Susquehanna, PA

Built 1948 Load: 13.6 t ADT: 210

SR 4008

Poor

Over: SILVER CREEK

FRANKLIN TWP .2M W TR 29, Susquehanna, PA

Built 1934 Load: 13.6 t ADT: 391

T-428 (CTY BR 6)

Poor

Over: SPRUCE RUN

2.7 MILES N. OF MAZEPPA, Union, PA

Built 1925 Load: 13.6 t ADT: 54

T-546

Poor

Over: OVER FOUR MILE RUN

SHEFFIELD TOWNSHIP, Warren, PA

Built 1970 Load: 13.6 t ADT: 50

SR 1016

Poor

Over: BRANCH OF MINGO CREEK

NOTTINGHAM TOWNSHIP, Washington, PA

Built 1939 Load: 13.6 t ADT: 792

W. PITTSBURGH ST

Poor

Over: RACCOON CREEK TRIB

300 WEST OF SR 18, Washington, PA

Built 1964 Load: 13.6 t ADT: 500

T-395 HEMLOCK ROAD

Poor

Over: BRANCH OF MIDDLE CREEK

1000 FT NE OF S BAKER RD, Wayne, PA

Built 1973 Load: 13.6 t ADT: 90

T-831 Pollins Rd

Poor

Over: North Fork Sewickley Ck

BTW 2017 & T830, Westmoreland, PA

Built 1977 Load: 13.6 t ADT: 50

SR 0092 TR 92

Poor

Over: MONROE CREEK

NICHOLSON TP 249N SR1011, Wyoming, PA

Built 1931 Load: 13.6 t ADT: 1,812

Fishers Lane

Poor

Over: Tacony Creek

W of Ramona Street 18E13, Philadelphia, PA

Built 1801 Load: 13.6 t ADT: 50

Century Lane

Poor

Over: Poquessing Creek

E of Mechanicsville 10E10, Philadelphia, PA

Built 1853 Load: 13.6 t ADT: 100

PRIZER ROAD (T513)

Poor

Over: BEAVER RUN

.4 Mi W. PA-100 3250-C5, Chester, PA

Built 1977 Load: 13.6 t ADT: 500

Mudd School Road

Poor

Over: Green Lick Run Lake

Hammondville, Fayette, PA

Built 1972 Load: 13.6 t ADT: 400

WEAVERLAND RD

Poor

Over: CEDAR CREEK

EAST OF PA 625, Lancaster, PA

Built 1955 Load: 13.6 t ADT: 100

FR 186

Poor

Over: S. BR. KINZUA CREEK

2.2 MILES SW OF FR 150, McKean, PA

Built 1962 Load: 13.9 t ADT: 10

OLD FREEPORT ROAD

Poor

Over: SYCAMORE RUN

SQ01 SYCAMORE RUN NO. 1, Allegheny, PA

Built 1982 Load: 14.5 t ADT: 825

COROAPOLIS IMPERIA

Poor

Over: MCCLARENS RUN

MC07 MCCLARENS RUN # 7, Allegheny, PA

Built 1940 Load: 14.5 t ADT: 944

OLD RIVER ROAD

Poor

Over: ALLEGHENY CREEK

NW OF GIBRALTAR, Berks, PA

Built 1935 Load: 14.5 t ADT: 300

WALTERS AVE.

Poor

Over: MANOR CREEK

S.W.OF WERNERSVILLE, Berks, PA

Built 1921 Load: 14.5 t ADT: 120

DWIGHT STREET

Poor

Over: LEBANON VAL. BR. NORFOLK

SPRINGMONT, Berks, PA

Built 1932 Load: 14.5 t ADT: 2,000

SPRING ROAD

Poor

Over: LITTLE NORTHKILL CREEK

600 FT E OF SR 183, Berks, PA

Built 1954 Load: 14.5 t ADT: 200

PEACH STREET

Poor

Over: SACONY CREEK

SW OF TRAIN DEPOT, Berks, PA

Built 1917 Load: 14.5 t ADT: 907

Showing 21,001-21,050 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.