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-367 CTY BR # 48

Poor

Over: CATAWISSA CREEK

1.3 MI S OF SHUMANS, Columbia, PA

Built 1905 Load: 15.4 t ADT: 10

T-517 PLANK ROAD

Poor

Over: OVER LITTLE SUGAR CREEK

2 MI.E.SR-2009 ON T-517, Crawford, PA

Built 1905 Load: 15.4 t ADT: 250

T-857 LEET ROAD

Poor

Over: TWELVEMILE CREEK

600 FT EAST OF SR 1006, Erie, PA

Built 1960 Load: 15.4 t ADT: 125

DULL STORE ROAD

Poor

Over: MILL RUN

175 E OF SR 381, Fayette, PA

Built 1955 Load: 15.4 t ADT: 40

TOWNSHIP ROAD 514

Poor

Over: ROBERTS RUN

EAST OF SR 218, Greene, PA

Built 1893 Load: 15.4 t ADT: 50

T520 GLOBE RUN RD

Poor

Over: GLOBE RUN

.2 MI.NE.OF COTTAGE, Huntingdon, PA

Built 1972 Load: 15.4 t ADT: 150

SR1034

Poor

Over: LITTLE MAHONING CREEK

NASHVILLE NO.1, Indiana, PA

Built 1962 Load: 15.4 t ADT: 90

PARKER STREET

Poor

Over: LACKAWANNA RIVER

900 EAST OF N. MAIN AVE., Lackawanna, PA

Built 1964 Load: 15.4 t ADT: 2,110

PA 462; SR 0462

Poor

Over: SUSQUE RVR;SR0624 NS RR

COLUMBIA BOROUGH, Lancaster, PA

Built 1929 Load: 15.4 t ADT: 10,623

PATLA ROAD

Poor

Over: ARNOLD CREEK

1 MI SOUTH OF SR 118, Luzerne, PA

Built 1957 Load: 15.4 t ADT: 25

SR 2004

Poor

Over: SR 22-PA 22

LEWISTOWN, Mifflin, PA

Built 1958 Load: 15.4 t ADT: 3,831

T-480

Poor

Over: KISHACOQUILLAS CREEK

400FT WEST OF LR44007, Mifflin, PA

Built 1973 Load: 15.4 t ADT: 100

GREEN LANE ROAD

Poor

Over: DEEP CREEK

1.0 MI NW OF SR29 2917-B7, Montgomery, PA

Built 1929 Load: 15.4 t ADT: 597

NARBERTH AVENUE

Poor

Over: AMTRAK PHIL-HBG.

1 Mi E. US-30 3478-J10, Montgomery, PA

Built 1902 Load: 15.4 t ADT: 500

SR 1015 (LR 165)

Poor

Over: MARTINS CREEK

S.MAIN STREET, Northampton, PA

Built 1911 Load: 15.4 t ADT: 1,002

JACKSONVILLE ROAD

Poor

Over: MONOCACY CREEK

EAST OF JACKSONVILLE, Northampton, PA

Built 1923 Load: 15.4 t ADT: 200

T-372 SAWMILL ROAD

Poor

Over: BRIDGE CREEK

1.0 MI EAST OF SR 3002, Pike, PA

Built 1970 Load: 15.4 t ADT: 50

ELLIOT STREET

Poor

Over: FREEMAN RUN

100 FT WEST OF SR 872, Potter, PA

Built 1955 Load: 15.4 t ADT: 200

PA 895 (LR53003)

Poor

Over: LOWER LITTLE SWATARA CR

1.2 M.E.OF ROCK, Schuylkill, PA

Built 1937 Load: 15.4 t ADT: 913

T-356 CLUCK RIDGE

Poor

Over: N.BR.MAHANTANGO CR.

0.5 MI.E.OF FREMONT, Snyder, PA

Built 1950 Load: 15.4 t ADT: 50

SR 1017

Poor

Over: BREASTWORK RUN

1.5 MI.NW. NEW BALTIMORE, Somerset, PA

Built 1937 Load: 15.4 t ADT: 87

T-460

Poor

Over: LICK CREEK

1.9 MI N OF CHERRY MILLS, Sullivan, PA

Built 1920 Load: 15.4 t ADT: 30

T-355 CHAPEL HILL

Poor

Over: OVER CALDWELL CREEK

ELDRED TOWNSHIP, Warren, PA

Built 1910 Load: 15.4 t ADT: 75

PA 116; YORK RD.

Poor

Over: TRIB CODORUS CREEK

SPRING GROVE, York, PA

Built 1958 Load: 15.4 t ADT: 10,618

5TH STREET

Poor

Over: CONRAIL;RICHMOND BRANCH

NEAR ALLEGHENY AVE3590H01, Philadelphia, PA

Built 1918 Load: 15.4 t ADT: 9,203

FRANKFORD AVENUE

Poor

Over: FRANKFORD CREEK

NR.HUNTING PARK AV3481F10, Philadelphia, PA

Built 1903 Load: 15.4 t ADT: 12,916

WHITBY AVENUE

Poor

Over: SEPTA(WEST CHESTER BR.)

S.BALTIMORE AVE. 3589D09, Philadelphia, PA

Built 1917 Load: 15.4 t ADT: 8,146

Pine Road

Poor

Over: Pennypack Creek

S of Bloomfield Rd 08K13, Philadelphia, PA

Built 1977 Load: 15.4 t ADT: 10,700

T-694

Poor

Over: TOMJACK CREEK

0.7 MI NW OF CODDING, Bradford, PA

Built 1920 Load: 15.4 t ADT: 10

LAUREL AVENUE

Poor

Over: Burlholme Creek

0.3MI S OF COTTMAN AVE, Montgomery, PA

Built 1970 Load: 15.4 t ADT: 1,000

N Cherry Alley

Poor

Over: Conoy Creek

200 FT S of Hummeltown St, Lancaster, PA

Built 1986 Load: 15.4 t ADT: 100

STONEY POINT ROAD

Poor

Over: MARKEL RUN

1.5 NE HAMPTON;MARKET RUN, Adams, PA

Built 1940 Load: 16.3 t ADT: 500

CALIFORNIA HOLLOW

Poor

Over: MONTOUR RUN

214004 CALIFORNIA HOLLOW, Allegheny, PA

Built 1930 Load: 16.3 t ADT: 300

WALL AV

Poor

Over: DIRTY CAMP RUN

453004 PITCAIRN BOROUGH, Allegheny, PA

Built 1900 Load: 16.3 t ADT: 5,000

T527 DECKER HOLLOW

Poor

Over: VANSCOYOC RUN

1 MI.W.OF BALD EAGLE, Blair, PA

Built 1915 Load: 16.3 t ADT: 129

T-525 HELSEL ROAD

Poor

Over: SMOKY RUN

3 MI.W.OF SPROUL, Blair, PA

Built 1920 Load: 16.3 t ADT: 46

T-762 (CO.BR.#38)

Poor

Over: SEELY CREEK

0.9 MI. N OF MOSHERVILLE, Bradford, PA

Built 1907 Load: 16.3 t ADT: 150

ISLAND ROAD

Poor

Over: DELAWARE CANAL

KINTNERSVILLE, Bucks, PA

Built 1832 Load: 16.3 t ADT: 30

ISLAND ROAD

Poor

Over: DELAWARE CANAL

NW OF KINTNERSVILLE, Bucks, PA

Built 1832 Load: 16.3 t ADT: 60

GILLESPIE AVENUE

Poor

Over: TROUT RUN

PORTAGE GILLESPIE AVENUE, Cambria, PA

Built 1924 Load: 16.3 t ADT: 256

ROCKPORT ROAD

Poor

Over: BUCK MOUNTAIN CREEK

1500 FT EAST OF ROCKPORT, Carbon, PA

Built 1912 Load: 16.3 t ADT: 50

DOE RUN ROAD

Poor

Over: BUCK RUN

AT TOWNSHIP LINE 37H1, Chester, PA

Built 1926 Load: 16.3 t ADT: 2,877

FOREST MANOR ROAD

Poor

Over: E. BRANCH BIG ELK CREEK

3/4 Mi S PA-926 3798-E5, Chester, PA

Built 1931 Load: 16.3 t ADT: 499

FRENCH CREEK ROAD

Poor

Over: FRENCH CREEK

1 Mi S of PA 23 3251-D6, Chester, PA

Built 1928 Load: 16.3 t ADT: 321

T-621 CTY BR # 85

Poor

Over: SHINGLE RUN

1.1 MI. NW OF IOLA, Columbia, PA

Built 1930 Load: 16.3 t ADT: 75

T-926 DOTYVILLE RD

Poor

Over: OVER PINE CREEK

1.4 MI E OF TITUSVILLE, Crawford, PA

Built 1900 Load: 16.3 t ADT: 250

SR 4006

Poor

Over: ARMSTRONG CREEK

.5 MI. S. FISHERVILLE, Dauphin, PA

Built 1920 Load: 16.3 t ADT: 286

SR 4038

Poor

Over: YOUGHIOGHENY RIVER/TRAIL

LAYTON BRIDGE, Fayette, PA

Built 1892 Load: 16.3 t ADT: 997

T421 BANKSTOWN RD

Poor

Over: HARES VALLEY CREEK

0.5 MI.W.OF MAPELTON, Huntingdon, PA

Built 1935 Load: 16.3 t ADT: 50

T-435

Poor

Over: LEININGERS RUN

400 S. OF T-559, Juniata, PA

Built 1939 Load: 16.3 t ADT: 100

Showing 21,101-21,150 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.