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 1021

Poor

Over: MARTIN CREEK

NICHOLSON BO .3M W SR1019, Wyoming, PA

Built 1961 Load: 32.7 t ADT: 1,537

PA 462; Market st.

Poor

Over: TRIB KREUTZ CREEK

STONYBROOK, York, PA

Built 1928 Load: 32.7 t ADT: 13,881

PA 616; SR 0616

Poor

Over: S BR CODORUS CREEK

1 MI. S. GLEN ROCK, York, PA

Built 1910 Load: 32.7 t ADT: 2,058

T859;CABIN HOLLOW

Poor

Over: BERMUDIAN CREEK

.2 E.FRNKLNTWN/BERMUD.CR., York, PA

Built 1918 Load: 32.7 t ADT: 453

RED MILL ROAD

Poor

Over: FISHING CREEK

0.4 MI SE OF SR 392, York, PA

Built 1910 Load: 32.7 t ADT: 1,036

FAIR SCHOOL RD

Poor

Over: CENTERVILLE CREEK

.6SW GLENROCK/CENTERVLE C, York, PA

Built 1920 Load: 32.7 t ADT: 600

T-502;CLUB FARM RD

Poor

Over: TRIBUTARY CODORUS CREEK

0.8 MI W OF SR214, York, PA

Built 1940 Load: 32.7 t ADT: 15

DETTERS MILL ROAD

Poor

Over: TRIBUTARY CONEWAGO CREEK

0.7 MI N OF SR 4014, York, PA

Built 1927 Load: 32.7 t ADT: 200

BENTZ MILL ROAD

Poor

Over: NORTH BR BERMUDIAN CREEK

250 FT SOUTH OF MT TOP RD, York, PA

Built 1966 Load: 32.7 t ADT: 100

RHAWN STREET

Poor

Over: PENNYPACK CREEK

.5MI.S.ROOSEVELT 3482D02, Philadelphia, PA

Built 1930 Load: 32.7 t ADT: 11,981

COBBS CREEK PARKWA

Poor

Over: COBBS CREEK

SW.PHILA 3699B01, Philadelphia, PA

Built 1924 Load: 32.7 t ADT: 25,948

GERMANTOWN AVENUE

Poor

Over: CRESHEIM CREEK

CHESTNUT HILL 3369J10, Philadelphia, PA

Built 1885 Load: 32.7 t ADT: 7,833

Sherwood Avenue

Poor

Over: Indian Creek

W of 66th Street - 27B06, Philadelphia, PA

Built 1918 Load: 32.7 t ADT: 800

T-316

Poor

Over: OVER HEMLOCK CREEK BR.

TIONESTA TOWNSHIP, Forest, PA

Built 1996 Load: 32.7 t ADT: 40

SR 2031

Poor

Over: HEMPT QUARRY ACCESS

HEMPT BROS. UNDERPASS, Cumberland, PA

Built 1986 Load: 32.7 t ADT: 6,482

STREETS RUN ROAD

Poor

Over: STREETS RUN

NEXT TO OPTION FIRE HALL, Allegheny, PA

Built 1980 Load: 32.7 t ADT: 5,171

T-689 PETERMAN HIL

Poor

Over: MILLER RUN

PETERMAN HILL, Armstrong, PA

Built 1966 Load: 32.7 t ADT: 400

CUCUMBER RUN RD

Poor

Over: CUCUMBER RUN

OHIOPYLE SP, Fayette, PA

Built 1998 Load: 32.7 t ADT: 20

Old William Penn

Poor

Over: Thompson Run

Intersect Thompson Run, Allegheny, PA

Built 1924 Load: 32.7 t ADT: 16,904

T784 Miller Run Rd

Poor

Over: Miller Run

2.5Mi NW of Central City, Somerset, PA

Built 1990 Load: 32.7 t ADT: 50

CORNERSTONE DRIVE

Poor

Over: TRIB. TO WILLOW CREEK

EAST OF MAIDEN CREEK, Berks, PA

Built 1980 Load: 32.7 t ADT: 150

T717 Donnelleville

Poor

Over: Little Bull Creek

BTW SR1035 & SR1037, Allegheny, PA

Built 1920 Load: 32.7 t ADT: 307

Smith Park Drive

Poor

Over: Burgetts Fork

500 W of SR 0018, Washington, PA

Built 2012 Load: 32.7 t ADT: 25

N. Halbea St T805

Poor

Over: Catasauqua Creek

0.6 mile east of SR 3017, Northampton, PA

Built 1987 Load: 32.7 t ADT: 200

W COLONIAL DR

Poor

Over: SPRING RUN

S OF GARNET MINE RD, Delaware, PA

Built 1975 Load: 32.7 t ADT: 400

T-800 ROLAND RD

Poor

Over: RED RUN

2.75 MI N OF EAST BERLIN, York, PA

Built 1983 Load: 32.7 t ADT: 50

Broadway Avenue

Poor

Over: Slate Creek

S. Greensburg Borough, Westmoreland, PA

Built 1901 Load: 32.7 t ADT: 100

TR458 MICAN ROAD

Poor

Over: VAN AUKEN CREEK

1/2 MI OFF OF ROUTE 6, Wayne, PA

Built 1965 Load: 32.7 t ADT: 50

Fire Tower Road

Poor

Over: Ramcat Run

200 N of Ramcat Road, Fayette, PA

Built 2023 Load: 32.7 t ADT: 30

U.S. ROUTE 209

Poor

Over: BUSH KILL CREEK

1.4 MILES NORTH OF SOUTH, Pike, PA

Built 1965 Load: 32.7 t ADT: 4,658

BRIGHTON HEIGHTS

Poor

Over: VERNER AVENUE

112 Brighton Heights Blvd, Allegheny, PA

Built 1930 Load: 33.6 t ADT: 13,100

SR0156

Poor

Over: LONG RUN

NORTH OF AVONMORE, Armstrong, PA

Built 1957 Load: 33.6 t ADT: 750

US 220

Poor

Over: TR.EVITTS CREEK

0.1 MILE NORTH OF SR 3003, Bedford, PA

Built 1926 Load: 33.6 t ADT: 5,566

T329 FOSSILVILLE R

Poor

Over: LITTLE WILLS CREEK

FOSSILVILLE, Bedford, PA

Built 1930 Load: 33.6 t ADT: 100

SR 1018(LR06132SP)

Poor

Over: MAIDEN CREEK

STONY RUN VALLEY ROAD, Berks, PA

Built 1932 Load: 33.6 t ADT: 395

SR 2045(LR 06053)

Poor

Over: TRIB TO IRONSTONE CREEK

GABLESVILLE(FUNK RD.), Berks, PA

Built 1934 Load: 33.6 t ADT: 1,558

SCHUYLKILL ROAD

Poor

Over: INDIAN CORN CREEK

SCHUYLKILL ROAD, Berks, PA

Built 1917 Load: 33.6 t ADT: 200

SR 4027

Poor

Over: OVER BUCKS CREEK

1 MI. SW OF BENTLEY CREEK, Bradford, PA

Built 1941 Load: 33.6 t ADT: 221

RIVER ROAD

Poor

Over: PIDCOCK CREEK

.1MI.LR-326 SPUR 25K08, Bucks, PA

Built 1935 Load: 33.6 t ADT: 6,206

BUCK ROAD

Poor

Over: MILL CREEK

HOLLAND TWP. 36B11, Bucks, PA

Built 1932 Load: 33.6 t ADT: 15,870

SR 4004

Poor

Over: COOKS RUN

2 MI E LEWIS RUN, Cameron, PA

Built 1953 Load: 33.6 t ADT: 310

PA TPK (I-476)

Poor

Over: MUD RUN

4 MI W OF ALBRIGHTSVILLE, Carbon, PA

Built 1957 Load: 33.6 t ADT: 22,283

SR 150-PA 150

Poor

Over: LOGAN BRANCH

BELLEFONTE BORO, Centre, PA

Built 1934 Load: 33.6 t ADT: 13,482

SR 150-PA 150

Poor

Over: HOLT HOLLOW RUN

MILESBURG, Centre, PA

Built 1966 Load: 33.6 t ADT: 4,874

SR 3006

Poor

Over: MILL RACE

BELLEFONTE, Centre, PA

Built 1905 Load: 33.6 t ADT: 1,890

US-1 BYPASS (NB)

Poor

Over: MILL ROAD (T-432)

NW KENNETT SQUARE 47C4, Chester, PA

Built 1965 Load: 33.6 t ADT: 14,828

STREET ROAD

Poor

Over: POCOPSON CREEK

.3MI.W.ROUTE 100 40G09, Chester, PA

Built 1937 Load: 33.6 t ADT: 11,166

SR 880-PA 880

Poor

Over: RAUCHTOWN CREEK

RAVENSBURG PARK, Clinton, PA

Built 1930 Load: 33.6 t ADT: 1,550

SR 1020

Poor

Over: OVER PINE CREEK

2 MI E OF JONESTOWN, Columbia, PA

Built 1940 Load: 33.6 t ADT: 185

SR 1014 JOHNSTOWN

Poor

Over: OVER MUDDY CREEK

ROCKDALE TOWNSHIP, Crawford, PA

Built 1917 Load: 33.6 t ADT: 350

Showing 22,501-22,550 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.