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 3005

Poor

Over: TRIB MARSH CREEK

S.W. OF GETTYSBURG, Adams, PA

Built 1960 Load: 32.7 t ADT: 569

JACK MTN.RD. /3021

Poor

Over: MINEY BRANCH RUN

.25 MI.N. OF L.R. 44, Adams, PA

Built 1937 Load: 32.7 t ADT: 2,369

BROADWAY AV

Poor

Over: DIRTY CAMP RUN

1/2 MILE WEST OF TR 48, Allegheny, PA

Built 1929 Load: 32.7 t ADT: 10,645

MONONGAHELA ROAD

Poor

Over: BECKETS RUN

800FT E OF T636, Allegheny, PA

Built 1915 Load: 32.7 t ADT: 4,283

KENNYWOOD BLVD

Poor

Over: UNION RR THOMPSON RUN

UNION RR YARD, Allegheny, PA

Built 1928 Load: 32.7 t ADT: 20,512

EIGHTH AVE

Poor

Over: HOMESTEAD RUN

AT US STEEL PLANT, Allegheny, PA

Built 1940 Load: 32.7 t ADT: 13,386

RAMP S

Poor

Over: RAMP R 02266 RPS. FORBES

Birmingham Bridge, Allegheny, PA

Built 1952 Load: 32.7 t ADT: 9,887

L.DR.CRK.VALLEY RD

Poor

Over: LITTLE DEER CREEK

WEST DEER @ ORANGE BELT X, Allegheny, PA

Built 1940 Load: 32.7 t ADT: 4,265

BAKERSTOWN RD

Poor

Over: LITTLE BULL CREEK

@ INTER.W/TWP.RD.701, Allegheny, PA

Built 1900 Load: 32.7 t ADT: 3,092

GLASSPORT ROAD

Poor

Over: WYLIE RUN

NEAR LOVEDALE RD, Allegheny, PA

Built 1905 Load: 32.7 t ADT: 6,411

ELLA HOLLOW RD

Poor

Over: BR.BECKETS RUN

564NORTH OF SR 0136, Allegheny, PA

Built 1926 Load: 32.7 t ADT: 259

BUENA VISTA RD

Poor

Over: WILDCAT RUN

AT WILDCAT ROAD, Allegheny, PA

Built 1938 Load: 32.7 t ADT: 1,847

MILLTOWN ROAD

Poor

Over: BODINES RUN

3400 NE OF TURNPIKE, Allegheny, PA

Built 1936 Load: 32.7 t ADT: 1,935

COCHRANS MILLS RD

Poor

Over: LICK RUN CREEK

0.5 MI S BUREAU OF MINES, Allegheny, PA

Built 1901 Load: 32.7 t ADT: 1,115

PRESTO SYGAN ROAD

Poor

Over: BRANCH MILLERS RUN

300 NORTH OF SR50, Allegheny, PA

Built 1942 Load: 32.7 t ADT: 3,041

BEAVER GRADE RD

Poor

Over: MONTR TRLWY & MONTOUR R

100 S.E. OF SR 3077, Allegheny, PA

Built 1960 Load: 32.7 t ADT: 11,814

MCKNIGHT RD

Poor

Over: BABCOCK BLVD GIRDYS RUN

OVER 02328 & GIRTYS RUN, Allegheny, PA

Built 1946 Load: 32.7 t ADT: 46,134

RIVER AV

Poor

Over: Three Rivers Heritage Tr

082 RIVER AVE VIADUCT, Allegheny, PA

Built 1939 Load: 32.7 t ADT: 6,000

KILLARNEY DR

Poor

Over: SAW MILL RUN

416002 AT ROUTE 88, Allegheny, PA

Built 1955 Load: 32.7 t ADT: 1,500

RAMP H

Poor

Over: CLIFF STREET

S APPR. MCKEESPORT-DUQ, Allegheny, PA

Built 1935 Load: 32.7 t ADT: 2,406

SR2005

Poor

Over: CHERRY RUN

EAST OF BRICK CHURCH, Armstrong, PA

Built 1938 Load: 32.7 t ADT: 294

FRANKFORT RD

Poor

Over: BRANCH SERVICE CREEK

250 SOUTH OF TWP.RD.482, Beaver, PA

Built 1989 Load: 32.7 t ADT: 2,409

CENTENNIAL AV

Poor

Over: JORDAN RUN

@ INTERSECTION W/SR 0351, Beaver, PA

Built 1956 Load: 32.7 t ADT: 2,147

BENNETT RUN RD

Poor

Over: BENNETT RUN

@ INTERSECTION W/SR 1001, Beaver, PA

Built 1954 Load: 32.7 t ADT: 6,123

LOVI RD

Poor

Over: CROWS RUN

AT SR 2002 INT., Beaver, PA

Built 1930 Load: 32.7 t ADT: 2,314

WOLF RUN RD

Poor

Over: WOLF RUN

0.5 MI. WEST OF SR 4041, Beaver, PA

Built 1962 Load: 32.7 t ADT: 548

PA 26

Poor

Over: PINEY CREEK

1.5 MI.SW.OF PURCELL, Bedford, PA

Built 1925 Load: 32.7 t ADT: 371

T352 Elk Lick Road

Poor

Over: CLEAR CREEK

4.5 MI.SW.OF EVERETT, Bedford, PA

Built 1928 Load: 32.7 t ADT: 50

PA 724 (LR 147)

Poor

Over: ALLEGHENY CREEK

MAIN STREET GIBRALTAR, Berks, PA

Built 1956 Load: 32.7 t ADT: 10,331

SR 1015(LR 06196)

Poor

Over: STONEY RUN

DONAT RD ., Berks, PA

Built 1924 Load: 32.7 t ADT: 121

SR 2024 (LR 06086)

Poor

Over: LITTLE MANATAWNY CREEK

KAUFFMAN RD.@ BERTLET MIL, Berks, PA

Built 1923 Load: 32.7 t ADT: 282

SR 2041(APPL.954)

Poor

Over: MONOCACY CREEK

WEAVERTOWN ROAD, Berks, PA

Built 1908 Load: 32.7 t ADT: 1,151

SR 2069(LR 284)

Poor

Over: BR. OF PERKIOMEN CREEK

BARTO BRIDGE, Berks, PA

Built 1908 Load: 32.7 t ADT: 1,168

SADDLE ROAD

Poor

Over: TRIB. TO MAIDEN CREEK

100 FT. NORTH OF RT.78, Berks, PA

Built 1957 Load: 32.7 t ADT: 150

BERKLEY RD.

Poor

Over: WILLOW CREEK

500 FT WEST RTE 61, Berks, PA

Built 1934 Load: 32.7 t ADT: 390

SECOND STREET

Poor

Over: MILL CREEK

BET PINE AND STATE STS, Berks, PA

Built 1920 Load: 32.7 t ADT: 687

T-328 CREPS ROAD

Poor

Over: CLOVER CREEK

1 MI.S.OF FREDERICKSBURG, Blair, PA

Built 1912 Load: 32.7 t ADT: 44

T-397 Biddle Road

Poor

Over: CLOVER CREEK

2 MI.S.OF WILLIAMSBURG, Blair, PA

Built 1908 Load: 32.7 t ADT: 667

T-341 (BR.#1)

Poor

Over: FALLS CREEK

1.9 MI. EAST OF BARCLAY, Bradford, PA

Built 1920 Load: 32.7 t ADT: 50

T-341 (TWP.BR.2)

Poor

Over: LONG VALLEY RUN

3.2 MI. EAST OF BARCLAY, Bradford, PA

Built 1928 Load: 32.7 t ADT: 50

T-623 (CTY BR.#15)

Poor

Over: COLD CREEK

2.3 M. NW OF STEVENSVILLE, Bradford, PA

Built 1910 Load: 32.7 t ADT: 50

S. RAILROAD ST

Poor

Over: SOUTH FORK SUGAR CREEK

S. RAILROAD ST. TROY BORO, Bradford, PA

Built 1948 Load: 32.7 t ADT: 100

BUTLER AVENUE

Poor

Over: NORTH BR.NESHAMINY CREEK

CHALFONT; 27K03/3033H04, Bucks, PA

Built 1948 Load: 32.7 t ADT: 14,214

EASTON ROAD

Poor

Over: BRANCH NESHAMINY CREEK

N.LR09049 EDISON 29B04, Bucks, PA

Built 1937 Load: 32.7 t ADT: 35,170

MEARNS ROAD

Poor

Over: BRANCH LITTLE NESHAMINY

1MI.N.ALMSHOUSE RD.34K02, Bucks, PA

Built 1927 Load: 32.7 t ADT: 3,559

SR0268

Poor

Over: NORTH BRANCH BEAR CREEK

STATE GAME LANDS 95, Butler, PA

Built 1925 Load: 32.7 t ADT: 782

SR 0422 EB&WB

Poor

Over: TRIB TO MUDDY CREEK

SHAWOOD PIPE, Butler, PA

Built 1949 Load: 32.7 t ADT: 13,779

SR3014

Poor

Over: BREAKNECK CREEK

CALLERY BORO, Butler, PA

Built 1933 Load: 32.7 t ADT: 1,157

T-846 MARWOOD ROAD

Poor

Over: LITTLE BUFFALO CREEK

BTW T820 & T843, Butler, PA

Built 1988 Load: 32.7 t ADT: 800

SOUTH MONROE ST.

Poor

Over: CONNOQUENESSING CR

250 S of E Cunningham St, Butler, PA

Built 1970 Load: 32.7 t ADT: 6,900

Showing 22,301-22,350 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.