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

MT.PLEASANT RD.

Fair

Over: SHERMAN CREEK

1.5 NE N.GRMNTN SHRM/JCKS, Perry, PA

Built 1918 Load: 10.0 t ADT: 50

T-590 WHITLING RD

Fair

Over: OVER PINE RUN

RICHLAND TOWNSHIP, Venango, PA

Built 1991 Load: 10.0 t ADT: 50

T-547 Deadmans R

Fair

Over: OVER LT. BROKENSTRAW CK.

FREEHOLD TOWNSHIP, Warren, PA

Built 1990 Load: 10.0 t ADT: 150

KELLAM-STALKER RD

Fair

Over: DELAWARE RIVER

HANKINS NY - STALKER PA, Potter, PA

Built 1889 Load: 10.0 t ADT: 180

CAREY SCHOOL ROAD

Fair

Over: MILL CREEK

W. VINCENT ST. - LIGONIER, Westmoreland, PA

Built 1988 Load: 10.0 t ADT: 210

FR 108

Fair

Over: WOLF RUN

S. OF DUHRING OFF FR 131, Forest, PA

Built 1900 Load: 10.7 t ADT: 5

FR 133

Fair

Over: EAST BRANCH TIONESTA CRL

5.7 MILES S OF T-315, McKean, PA

Built 1934 Load: 10.7 t ADT: 100

W.HIGH STREET

Fair

Over: CSX TRANSPORTATION

HIGH ST.CSXT RR N OXF BOR, Adams, PA

Built 1920 Load: 10.9 t ADT: 250

MOUNT NEBO RD

Fair

Over: SR 0079 NB SB

MT NEBO INTERCHANGE, Allegheny, PA

Built 1971 Load: 10.9 t ADT: 20,321

T-720 MILLER ROAD

Fair

Over: COWANSHANNOCK CREEK

600 feet south of SR-1026, Armstrong, PA

Built 1918 Load: 10.9 t ADT: 31

T-494 OLEAN ROAD

Fair

Over: TRIB TO MAHONING CREEK

1 mile east of SR 1003, Armstrong, PA

Built 1980 Load: 10.9 t ADT: 100

SR 2039(LR146SPE)

Fair

Over: US 422 (LR 793)

E.NEVERSINK RD., Berks, PA

Built 1962 Load: 10.9 t ADT: 16,195

FRANKLIN STREET

Fair

Over: PIGEON CREEK

BOROUGH OF SHOEMAKERSVILE, Berks, PA

Built 1979 Load: 10.9 t ADT: 515

SCHWENK MILL ROAD

Fair

Over: E. BR. PERKIOMEN CREEK

0.85 MI SE SR 563 2808J8, Bucks, PA

Built 1883 Load: 10.9 t ADT: 250

FARM SCHOOL ROAD

Fair

Over: TOHICKON CREEK

1000FT W SR611 2698-E7, Bucks, PA

Built 1876 Load: 10.9 t ADT: 150

BRIDGE STREET

Fair

Over: COOKS CREEK

CREAMERY IRON BRG.2582-D8, Bucks, PA

Built 1882 Load: 10.9 t ADT: 250

MCMILLEN STREET

Fair

Over: SOLOMON RUN

MCMILLEN ST. JOHNSTOWN, Cambria, PA

Built 1980 Load: 10.9 t ADT: 656

ROSS FORDING ROAD

Fair

Over: OCTORARO CREEK

NEAR COCHRANVILLE 35D10, Chester, PA

Built 1885 Load: 10.9 t ADT: 130

GERMANY HOLLOW RD

Fair

Over: INDIAN RUN

W.BRANDYWINE TWP. 18K01, Chester, PA

Built 1919 Load: 10.9 t ADT: 103

HALTEMAN ROAD

Fair

Over: PIGEON CREEK

EAST COVENTRY TWP 3139-A9, Chester, PA

Built 1914 Load: 10.9 t ADT: 183

T-338 KELLAR RD

Fair

Over: EAST BR MAHONING CREEK

600 FT SOUTH OF T-353, Clearfield, PA

Built 1924 Load: 10.9 t ADT: 30

SR 6 GRAND ARMY HY

Fair

Over: OVER FRENCH CREEK

WOODCOCK TOWNSHIP, Crawford, PA

Built 1972 Load: 10.9 t ADT: 3,977

GREENLANE DRIVE

Fair

Over: YELLOW BREECHES CREEK

N.GRN LANE FARM/YEL.BRCH., Cumberland, PA

Built 1889 Load: 10.9 t ADT: 2,808

SR 1035

Fair

Over: MOUNTS CREEK

BULLSKIN TOWNSHIP, Fayette, PA

Built 1987 Load: 10.9 t ADT: 473

DURSTINE ROAD

Fair

Over: INDIAN CREEK

225 E OF SR 381/711, Fayette, PA

Built 1940 Load: 10.9 t ADT: 10

PA 928

Fair

Over: LICKING CREEK

DICKEYS MOUNTAIN, Fulton, PA

Built 1963 Load: 10.9 t ADT: 328

TURKEY HOLLOW RD.

Fair

Over: HARGUS CREEK

0.1 mi SE int w/ SR 3011, Greene, PA

Built 1900 Load: 10.9 t ADT: 30

SR4006

Fair

Over: SOUTH BRANCH PLUM CREEK

DAVIS NO.1, Indiana, PA

Built 1965 Load: 10.9 t ADT: 368

T-362 RIDGE RD

Fair

Over: CROOKED CREEK

BTW T151 & T361, Indiana, PA

Built 1980 Load: 10.9 t ADT: 100

MILL CREEK ROAD

Fair

Over: LITTLE LEHIGH CREEK

SCHMOYERS MILL BRIDGE, Lehigh, PA

Built 1967 Load: 10.9 t ADT: 500

T-413 COLEMAN MILL

Fair

Over: ALLEGHENY RIVER

1000 FT SW OF SR 6, McKean, PA

Built 1985 Load: 10.9 t ADT: 150

T373 BREWER RUN RD

Fair

Over: POTATO CREEK

1000 FT WEST OF SR 46, McKean, PA

Built 1910 Load: 10.9 t ADT: 40

LITTLE CREEK ROAD

Fair

Over: LITTLE MARTINS CREEK

0.7 MILE NORTH OF PA 611, Northampton, PA

Built 1911 Load: 10.9 t ADT: 350

FERRY ROAD

Fair

Over: FIDLERS RUN

0.5 MI S OF HERNDON, Northumberland, PA

Built 1960 Load: 10.9 t ADT: 150

CONRAD ROAD T-534

Fair

Over: LITTLE SHAMOKIN CREEK

SE OF SUNBURY, Northumberland, PA

Built 1900 Load: 10.9 t ADT: 75

SR 2036

Fair

Over: PIKE RUN

WEST PIKE RUN TOWNSHIP, Washington, PA

Built 1984 Load: 10.9 t ADT: 198

SR 1004 conewago c

Fair

Over: LITTLE CONEWAGO CREEK

1.5 MI.S.W.OF STRINESTOWN, York, PA

Built 1975 Load: 10.9 t ADT: 693

T-594 BOOKER ROAD

Fair

Over: TRIB SUSQUEHANA RIVER

1 MI NE OF SR 2043, York, PA

Built 1980 Load: 10.9 t ADT: 100

NORTH BEAVER ST

Fair

Over: CODORUS CREEK

N BEAVER ST; CODORUS-YORK, York, PA

Built 1972 Load: 10.9 t ADT: 4,021

SINGER RD

Fair

Over: ABAND RR; TRIB.BEE TREE

NEW FREEDOM BORO/ABAND RR, York, PA

Built 1905 Load: 10.9 t ADT: 456

NFSR 135

Fair

Over: BIG MILL CREEK

AT INTERSECTION NFSR 143, Elk, PA

Built 2010 Load: 11.7 t ADT: 50

SOUTH PATROL RD

Fair

Over: ROCKY SPRINGS BRANCH

EAST OF GATE 16, Franklin, PA

Built 1943 Load: 11.7 t ADT: 10

ALPHA DR

Fair

Over: SR 0028 NB SB

TWP.RD 503 OVER SR 0028, Allegheny, PA

Built 1970 Load: 11.8 t ADT: 2,486

COVERED BRG RD

Fair

Over: HUNTERS CREEK

LITTLE GAP, Carbon, PA

Built 1932 Load: 11.8 t ADT: 750

SR 3010

Fair

Over: SR 322-US 322 SLAB CABIN

LEMONT, Centre, PA

Built 1985 Load: 11.8 t ADT: 3,358

THOURON RD (T-378)

Fair

Over: TRIB TO DOE RUN

W MARLBOROUGH TWP 3689-H6, Chester, PA

Built 1919 Load: 11.8 t ADT: 150

COUNTY PARK ROAD

Fair

Over: FRENCH CREEK

0.2 Mi S of PA-23 3249-D3, Chester, PA

Built 1915 Load: 11.8 t ADT: 491

T-350

Fair

Over: FISHING CREEK

1.9 MI. WEST OF LOGANTON, Clinton, PA

Built 1925 Load: 11.8 t ADT: 25

HOLLINGSHEAD CO#40

Fair

Over: CATAWISSA CREEK

0.5 MI E OF CATAWISSA, Columbia, PA

Built 1851 Load: 11.8 t ADT: 300

CENTER STREET

Fair

Over: OVER CONNEAUT CREEK

CONNEAUTVILLE-CENTER ST., Crawford, PA

Built 1896 Load: 11.8 t ADT: 250

Showing 201-250 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.