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 3012 CEMETERY R

Poor

Over: OVER BROKENSTRAW CREEK

SPRING CREEK TOWNSHIP, Warren, PA

Built 1889 Load: 8.2 t ADT: 139

IAMS HILL RD TR733

Poor

Over: TEN MILE CREEK

200 FROM SR 2020, Washington, PA

Built 1949 Load: 8.2 t ADT: 200

WILSON LOWTON BR

Poor

Over: CROSS CREEK

400 WEST OF SR 4035, Washington, PA

Built 1887 Load: 8.2 t ADT: 20

SR 0590 TR 590

Poor

Over: JONES CREEK

SALEM TWP .2 M E TR 690, Wayne, PA

Built 1930 Load: 8.2 t ADT: 2,115

KINGS ROAD

Poor

Over: BRUSH CREEK

AT INT W/BRUSH CRK RD, Westmoreland, PA

Built 1920 Load: 8.2 t ADT: 20

CAL KEN COURT

Poor

Over: HAYMAKER RUN

300 EAST OF SR 4033, Westmoreland, PA

Built 1982 Load: 8.2 t ADT: 200

COOLBAUGH MTN. RD.

Poor

Over: WHITELOCK CREEK

.1 M SOUTH OF SR 292, Wyoming, PA

Built 1945 Load: 8.2 t ADT: 50

Rosstown Road

Poor

Over: Beaver Cr./Pinchot Lake

0.5 MI N.E. Of Rossville, York, PA

Built 1959 Load: 8.2 t ADT: 3,198

LOG ROAD

Poor

Over: EAST BRANCH CODORUS CR

@ LK.REDMAN/E.BR.CODORUS, York, PA

Built 1954 Load: 8.2 t ADT: 1,288

WHARTON STREET

Poor

Over: CSX TRANSPORTATION

200 W of 34th 3589-J10, Philadelphia, PA

Built 1918 Load: 8.2 t ADT: 100

Park Access Road

Poor

Over: Two Mile Run

Inside park near park lot, Beaver, PA

Built 1976 Load: 8.2 t ADT: 10

Postal Road

Poor

Over: Rankin Run

Bute, Fayette, PA

Built 1965 Load: 8.2 t ADT: 350

Moyer Road

Poor

Over: Irish Run

Adjacent to U.S. 119, Fayette, PA

Built 1980 Load: 8.2 t ADT: 250

T-841 Kiester Road

Poor

Over: Long Run

0.2 mi. W of SR 0008, Butler, PA

Built 1990 Load: 8.2 t ADT: 500

FEESER ROAD

Poor

Over: ALLOWAY CREEK

2 NW LITLTWN/ALLOWAY CRK., Adams, PA

Built 1940 Load: 9.1 t ADT: 100

MAIN ST

Poor

Over: ROBINSON RUN

214003 MAIN ST(N&S FAYET), Allegheny, PA

Built 1920 Load: 9.1 t ADT: 300

SR 1021(LR 06191)

Poor

Over: BIEBER CREEK

ROCKLAND BRIDGE, Berks, PA

Built 1913 Load: 9.1 t ADT: 2,078

BROWNS MILL ROAD

Poor

Over: MONOCACY CREEK

DANIEL BOONE HOMESTEAD, Berks, PA

Built 1967 Load: 9.1 t ADT: 100

TOLL HOUSE ROAD

Poor

Over: OYSTERVILLE CREEK

SOUTH OF PLEASANTVILLE, Berks, PA

Built 1920 Load: 9.1 t ADT: 100

UPPER RES.PARK RD.

Poor

Over: SINK RUN

RESERVOIR PARK TYRONE, Blair, PA

Built 1987 Load: 9.1 t ADT: 25

T-328 (CO.BR.#8)

Poor

Over: SUGAR CREEK

1.2 M. W. OF W. BURLINGTO, Bradford, PA

Built 1907 Load: 9.1 t ADT: 100

SILO HILL ROAD

Poor

Over: NORTH BR NESHAMINY CREEK

0.5 M W SR611 ADC 2922-G3, Bucks, PA

Built 1902 Load: 9.1 t ADT: 50

T-348 BOOK ROAD

Poor

Over: MUDDY CREEK

0.22 MI N OF T-369, Butler, PA

Built 1925 Load: 9.1 t ADT: 100

HEAVEN LANE

Poor

Over: S FORK LIT SCRUBGRASS CR

1.5 MI FROM INT W/SR58, Butler, PA

Built 1912 Load: 9.1 t ADT: 50

MAPLE AVENUE

Poor

Over: W.BR.SUSQUEHANNA RIVER

Maple Ave N Cambria Boro, Cambria, PA

Built 1954 Load: 9.1 t ADT: 308

HARVEYS BRIDGE RD

Poor

Over: W. BR. BRANDYWINE CREEK

1 Mi W of PA-162 3690-K1, Chester, PA

Built 1926 Load: 9.1 t ADT: 1,897

T-504 WINDMILL RD

Poor

Over: TOWN RUN

3.3 mi N of Hawthorne, Clarion, PA

Built 1940 Load: 9.1 t ADT: 50

MCCORMICK RD T-626

Poor

Over: YELLOW BREECHES CREEK

1SW LISBURN=YK253/Y.B., Cumberland, PA

Built 1918 Load: 9.1 t ADT: 74

HEMPT ROAD (T-551)

Poor

Over: HOGESTOWN RUN

2.4 NW MCHNICBRG/HOGESTOW, Cumberland, PA

Built 1952 Load: 9.1 t ADT: 2,000

SR 2019 S.Nyes Rd.

Poor

Over: BEAVER CREEK

1.5 MI.N.W. HUMMELSTOWN, Dauphin, PA

Built 1984 Load: 9.1 t ADT: 11,949

MOYER ROAD

Poor

Over: MOUNTS CREEK

SOUTH OF RT982-T906 JUNCT, Fayette, PA

Built 1920 Load: 9.1 t ADT: 1,900

MOYER ROAD

Poor

Over: MOUNTS CREEK

SOUTH OF RT982-T906 JUNCT, Fayette, PA

Built 1920 Load: 9.1 t ADT: 900

TOWNSHIP ROAD 846

Poor

Over: DUNBAR CREEK

T846 AT KIMMELS, Fayette, PA

Built 1979 Load: 9.1 t ADT: 150

BRUSHWOOD RD

Poor

Over: COVE RUN

AT SWPA RR EAST UNIONTOWN, Fayette, PA

Built 1963 Load: 9.1 t ADT: 800

TOWNSHIP DRIVE

Poor

Over: REDSTONE CREEK

LEITH, Fayette, PA

Built 1930 Load: 9.1 t ADT: 350

T-489 MARTIN RD

Poor

Over: McKEE RUN

TWP#202 BTW T486 & T605, Indiana, PA

Built 1965 Load: 9.1 t ADT: 250

T481 BLACK ROCK RD

Poor

Over: W BR OCTORARO CREEK

500 FT NW OF SR 472, Lancaster, PA

Built 1921 Load: 9.1 t ADT: 50

T-354 (Syner Rd)

Poor

Over: QUITTAPAHILLA CREEK

1.4 W ANNVLLE/QUITTY, Lebanon, PA

Built 1900 Load: 9.1 t ADT: 375

COUNTY BRIDGE ROAD

Poor

Over: TROUT CREEK

SLATEDALE, Lehigh, PA

Built 1888 Load: 9.1 t ADT: 50

S.WALNUT STREET

Poor

Over: TROUT CREEK & FACTORY ST

SLATINGTON, Lehigh, PA

Built 1925 Load: 9.1 t ADT: 3,000

T-652

Poor

Over: GREGS RUN

1.3 M. S.E. PICTURE ROCKS, Lycoming, PA

Built 1986 Load: 9.1 t ADT: 26

SR2036 SHIFFERS RD

Poor

Over: PA 33 (LR 796)

1.3 MI.S.OF I-80, Monroe, PA

Built 1963 Load: 9.1 t ADT: 737

PA 715(LR 45042)

Poor

Over: MCMICHAELS CREEK

VILLAGE OF MCMICHAEL, Monroe, PA

Built 1910 Load: 9.1 t ADT: 5,245

SR 3026 (LR 45056)

Poor

Over: APPENZELL CREEK

SMITH HILL ROAD, Monroe, PA

Built 1915 Load: 9.1 t ADT: 145

GREEN MT.DRIVE

Poor

Over: MARSHALL CREEK

100 FT.W.OF US 209, Monroe, PA

Built 1910 Load: 9.1 t ADT: 100

RAILROAD STREET

Poor

Over: SECHLER RUN

BORO OF DANVILLE, Montour, PA

Built 1969 Load: 9.1 t ADT: 2,000

CEDAR DRIVE

Poor

Over: INDIAN CREEK

AT SR 4003, Northampton, PA

Built 1826 Load: 9.1 t ADT: 100

T-438 HERZOG RD

Poor

Over: BALLIARD CREEK

700 E OF SR434 INTERSECT, Pike, PA

Built 1956 Load: 9.1 t ADT: 50

T-391 CRANDALL RD

Poor

Over: SINNEMAHONING CRK

150 FT SE OF SR 3003, Potter, PA

Built 1955 Load: 9.1 t ADT: 100

WOOD LANE

Poor

Over: DEEP CREEK

NE OF HEGINS, Schuylkill, PA

Built 1940 Load: 9.1 t ADT: 150

Showing 20,751-20,800 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.