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

PLEASANTVILLE ROAD

Poor

Over: LITTLE BULL CREEK

1/4 MI. S.W. OF SR 1032, Allegheny, PA

Built 1972 Load: 7.3 t ADT: 1,118

WILDWOOD ROAD

Poor

Over: CSX RR. CREEK PRIVATE RD

250 WEST OF SR 4067, Allegheny, PA

Built 1982 Load: 7.3 t ADT: 11,568

CLEARVIEW RD

Poor

Over: GOURDHEAD RUN

207001 GOURDHEAD RUN #6, Allegheny, PA

Built 1930 Load: 7.3 t ADT: 500

TAYLOR AVE

Poor

Over: DIRTY CAMP RUN

453003 PITCAIRN BOROUGH, Allegheny, PA

Built 1910 Load: 7.3 t ADT: 100

WOOLTOWN RD

Poor

Over: HOSPITAL CREEK

EAST OF HEIDELBERG ROAD, Berks, PA

Built 1961 Load: 7.3 t ADT: 157

T-321 ATHENS TWP.

Poor

Over: MURRAY CREEK

1.8 MI. SW BORO OF ATHENS, Bradford, PA

Built 1977 Load: 7.3 t ADT: 150

T-691 MCSHANE RD

Poor

Over: LITTLE BUFFALO RUN

3/4 MI E INT. SR1015&T570, Butler, PA

Built 1907 Load: 7.3 t ADT: 200

T-840 MCGRADY HOLL

Poor

Over: LITTLE BUFFALO RUN

1/2 MILE NORTH OF T-570, Butler, PA

Built 1923 Load: 7.3 t ADT: 450

T-401 PERRY AVENUE

Poor

Over: DOWNERS RUN

300 E OF MIKULA RD, Fayette, PA

Built 1952 Load: 7.3 t ADT: 200

JEFFERSON STREET

Poor

Over: REDSTONE CREEK

400 SOUTH OF CHURCH ST., Fayette, PA

Built 1971 Load: 7.3 t ADT: 4,700

SR 3009 Corner rd.

Poor

Over: LICKING CREEK

3 MI SW OF MERCERSBURG, Franklin, PA

Built 1961 Load: 7.3 t ADT: 1,326

T-313 HILL ROAD

Poor

Over: TR.SAWMILL HOLLOW RUN

3.7 MI.SW.OF WARFORDSBURG, Fulton, PA

Built 1946 Load: 7.3 t ADT: 25

KISENWETHER ROAD

Poor

Over: TRIB. TO NESCOPECK CREEK

1 MI EAST OF SR 93, Luzerne, PA

Built 1965 Load: 7.3 t ADT: 150

PA 715 (LR 45024)

Poor

Over: POCONO CREEK

TANNERSVILLE, Monroe, PA

Built 1956 Load: 7.3 t ADT: 11,262

SCHLEGEL ROAD

Poor

Over: TRIBUTARY MIDDLE CREEK

1.6MI NE OF SR 73 2915-D6, Montgomery, PA

Built 1930 Load: 7.3 t ADT: 20

CENTER RD

Poor

Over: BIXLER RUN

0.5 MI SE BIXLERS RUN, Perry, PA

Built 1905 Load: 7.3 t ADT: 50

T-515 YONAI ROAD

Poor

Over: STONYCREEK RIVER

3 MI.S.OF SHANKSVILLE, Somerset, PA

Built 1900 Load: 7.3 t ADT: 50

NORTH STREET

Poor

Over: FLAUGHERTY CREEK

MEYERSDALE BOROUGH, Somerset, PA

Built 1900 Load: 7.3 t

T-642

Poor

Over: ZIMMERMAN CREEK

0.5 MILE NE OF NAUVOO, Tioga, PA

Built 1909 Load: 7.3 t ADT: 50

T-539 VALASTIAK RD

Poor

Over: OVER WNYP R.R.

FREEHOLD TOWNSHIP, Warren, PA

Built 1907 Load: 7.3 t ADT: 50

RODGERS BR.(T-487)

Poor

Over: BUFFALO CREEK TRIB.

150 EAST OF SR3001, Washington, PA

Built 1915 Load: 7.3 t ADT: 90

STROUD BRIDGE T859

Poor

Over: RACCOON CREEK TRIB

2000 EAST OF TR 820, Washington, PA

Built 1904 Load: 7.3 t ADT: 10

WEST WHEELING STR.

Poor

Over: CHARTIERS CREEK TRIB

300 WEST OF SR 40, Washington, PA

Built 1919 Load: 7.3 t ADT: 200

SR 1060

Poor

Over: KISKIMINETAS & NS R/R

SALINA BRIDGE, Westmoreland, PA

Built 1906 Load: 7.3 t ADT: 398

FULTON SCHOOL RD.

Poor

Over: NO BRANCH MUDDY CREEK

BR.MUDDY CR./2.1SE FELTON, York, PA

Built 1961 Load: 7.3 t ADT: 17

T968 ; SHEEPFORD R

Poor

Over: YELLOW BREECHES CREEK

YEL BR/.9S PA TURNPIKE, York, PA

Built 1887 Load: 7.3 t ADT: 263

Keystone Street

Poor

Over: Nancy Run

Near Freemansburg, Northampton, PA

Built 1930 Load: 7.3 t ADT: 400

RIDGE ROAD

Poor

Over: LATIMORE CREEK

2.5 E.YRK.SPRG/LATIMORE C, Adams, PA

Built 1945 Load: 8.2 t ADT: 150

LINCOLN AV

Poor

Over: GIRTYS RUN

NEAR INT. W/ EAST OHIO, Allegheny, PA

Built 1915 Load: 8.2 t ADT: 4,000

LEVENGOOD ROAD

Poor

Over: MANATAWNY CREEK

WEIDNERS MILL BRIDGE, Berks, PA

Built 1961 Load: 8.2 t ADT: 203

T-764 (CO.BR.#34)

Poor

Over: BULLARD CREEK

.3 MI. N.W. OF NORTH ROME, Bradford, PA

Built 1915 Load: 8.2 t ADT: 50

T-710

Poor

Over: TOMJACK CREEK

2.7 MI. NW OF BURLINGTON, Bradford, PA

Built 1920 Load: 8.2 t ADT: 35

LAUCHNOR RD

Poor

Over: LIZARD CREEK

S.OF SR 895 NR.SCH.CO.LIN, Carbon, PA

Built 1984 Load: 8.2 t ADT: 300

WYEBROOK ROAD

Poor

Over: EAST BR BRANDYWINE CREEK

WEST NANTMEAL TWP 3359-H4, Chester, PA

Built 1888 Load: 8.2 t ADT: 290

T-403 BURNT MILLS

Poor

Over: BEAVER CREEK

0.3 mi SE int w/ SR 338, Clarion, PA

Built 1970 Load: 8.2 t ADT: 50

WEST CROSS RD T535

Poor

Over: N FORK POWELL CREEK

.7SW CARNSVLLE/N FRK POWE, Dauphin, PA

Built 1976 Load: 8.2 t ADT: 75

T-360 ORE DOCKS RD

Poor

Over: E BR CONNEAUT CREEK

1200 NORTH OF GAGE ROAD, Erie, PA

Built 1940 Load: 8.2 t ADT: 71

T385 BARTON HOLLOW

Poor

Over: MOUNTAIN CREEK TRIB

500 FT NE OF MUD PIKE RD, Fayette, PA

Built 1930 Load: 8.2 t ADT: 150

SHORTCUT RD T-333

Poor

Over: BROWNS RUN

1.4 MI N OF SR 0166, Fayette, PA

Built 1958 Load: 8.2 t ADT: 400

Cedar Street T-481

Poor

Over: BACK CREEK

BACK CR; WILLIAMSON, Franklin, PA

Built 1876 Load: 8.2 t ADT: 100

SR 3001

Poor

Over: ENLOW FORK WHEELING CK.

RICHHILL TOWNSHIP, Greene, PA

Built 1901 Load: 8.2 t ADT: 223

T-343 EBENEZER CHU

Poor

Over: TRIB TO TUSCARORA CREEK

200 SW OF BARTON HILL RD, Juniata, PA

Built 1996 Load: 8.2 t ADT: 75

E. DIVISION STREET

Poor

Over: SOLOMON CREEK

400 FT SE OF SR 2008, Luzerne, PA

Built 1977 Load: 8.2 t ADT: 835

T-836 (TRUMAN ST)

Poor

Over: TROUT RUN

VILLAGE OF TROUT RUN, Lycoming, PA

Built 1919 Load: 8.2 t ADT: 108

BRIDGE 2606 T-401

Poor

Over: OVER NESHANNOCK CREEK

OLD MERCER RD E.LACK TWP, Mercer, PA

Built 1922 Load: 8.2 t ADT: 375

HOLLOW ROAD

Poor

Over: SCHWABEN CREEK

0.5 MI. W. OF REBUCK, Northumberland, PA

Built 1897 Load: 8.2 t ADT: 25

T-583 HARRISON RD

Poor

Over: COWANESQUE RIVER

500 FT NE OF SR 49, Potter, PA

Built 1979 Load: 8.2 t ADT: 40

(WINTERS RD)

Poor

Over: TOMHICKEN CREEK

RD. INTO VALLEY OF LAKES, Schuylkill, PA

Built 1955 Load: 8.2 t ADT: 50

T-706 BARTA ROAD

Poor

Over: OVEN RUN

3 MI.E.OF STOYSTOWN, Somerset, PA

Built 1902 Load: 8.2 t ADT: 50

T-385

Poor

Over: STONY FORK CREEK

VILLAGE OF STONY FORK, Tioga, PA

Built 1935 Load: 8.2 t ADT: 105

Showing 20,701-20,750 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.