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

NEWTOWN BY-PASS

Fair

Over: NEWTOWN CREEK

.4MI.WEST LR 152 36J03, Bucks, PA

Built 1974 Load: 38.1 t ADT: 34,016

TRENTON ROAD

Fair

Over: INTERSTATE 295

1.7MI.N.PENNA TPK. 42E02, Bucks, PA

Built 1968 Load: 38.1 t ADT: 11,945

COUNTY LINE ROAD

Fair

Over: LITTLE NESHAMINY CREEK

1MI.SE.OF TR-152 28D12, Bucks, PA

Built 1985 Load: 38.1 t ADT: 14,724

COUNTY LINE ROAD

Fair

Over: PARK CREEK

.8MI.NW.TR-611 33H02, Bucks, PA

Built 1985 Load: 38.1 t ADT: 14,724

BORDENTOWN ROAD

Fair

Over: VAN SCIVER LAKE

EAST OF TULLYTOWN 43K02, Bucks, PA

Built 1950 Load: 38.1 t ADT: 1,442

NORTH MAIN STREET

Fair

Over: BUCK CREEK

IN YARDLEY BOROUGH 33D11, Bucks, PA

Built 1931 Load: 38.1 t ADT: 6,485

COUNTY LINE RD

Fair

Over: N.E.BR PERKIOMEN CREEK

2.MI.S.SELLERSVILL 19J07, Bucks, PA

Built 1932 Load: 38.1 t ADT: 4,294

STONY FORD ROAD

Fair

Over: SEPTA (SERVICE DISCONT.)

0.28 MI SE SR 532 3149-J8, Bucks, PA

Built 1978 Load: 38.1 t ADT: 800

T-355 (Buck Rd)

Fair

Over: PA TPK (I-276)

SOUTH OF SOUTHAMPTON, Bucks, PA

Built 1954 Load: 38.1 t ADT: 200

PA TPK (I-276)

Fair

Over: SR 2040

NEAR TREVOSE, Bucks, PA

Built 1954 Load: 38.1 t ADT: 90,000

SR 0079 NB

Fair

Over: TWP RD 969

EHRMAN NB, Butler, PA

Built 1968 Load: 38.1 t ADT: 19,881

T-352 FORSYTHE RD

Fair

Over: KAUFMAN RUN

0.8 MI NW OF BEAVER ST, Butler, PA

Built 1997 Load: 38.1 t ADT: 200

T-396 CLAY AVE EXT

Fair

Over: BREAKNECK CREEK

0.05 MI S OF HUTCHMAN RD, Butler, PA

Built 1955 Load: 38.1 t ADT: 600

T-579 HOON ROAD

Fair

Over: CONNOQUENESSING CR

250 SE of SR 0038, Butler, PA

Built 1910 Load: 38.1 t ADT: 100

T418 BEAVER DAM RD

Fair

Over: B&LE RAILROAD

0.5 MI W OF EUCLID, Butler, PA

Built 1987 Load: 38.1 t ADT: 150

T-485 STEINER BR R

Fair

Over: GLADE RUN

500 S of SR 0228, Butler, PA

Built 1955 Load: 38.1 t ADT: 500

SR 3030

Fair

Over: SALT LICK RUN

MINERAL POINT, Cambria, PA

Built 1925 Load: 38.1 t ADT: 788

SR 3047

Fair

Over: S.BR.BLACKLICK CREEK

TWIN ROCKS, Cambria, PA

Built 1954 Load: 38.1 t ADT: 847

MOUNTAIN DRIVE

Fair

Over: BROWNS RUN

Mountain Dr N Cambri Boro, Cambria, PA

Built 1978 Load: 38.1 t ADT: 410

PA TPK (I-476)

Fair

Over: T-337

1.5 MI S OF BOWMANSTOWN, Carbon, PA

Built 1957 Load: 38.1 t ADT: 27,609

SR 64-PA 64

Fair

Over: LITTLE FISHING CREEK

HUBLERSBURG, Centre, PA

Built 1958 Load: 38.1 t ADT: 4,048

SR 322-US 322

Fair

Over: SR 45-PA 45

3 MI SE STATE COLLEGE, Centre, PA

Built 1971 Load: 38.1 t ADT: 11,372

SR 445-PA 445

Fair

Over: BRANCH ROARING RUN

MADISONBURG, Centre, PA

Built 1947 Load: 38.1 t ADT: 715

LONGWOOD GDNS RAMP

Fair

Over: BALTIMORE PIKE

AT ROUTE 52 48B01, Chester, PA

Built 1962 Load: 38.1 t ADT: 5,000

ROUTE 30 BY-PASS

Fair

Over: FIRST AVENUE NORTH

NORTH COATESVILLE 28K2, Chester, PA

Built 1961 Load: 38.1 t ADT: 37,730

BULLTOWN ROAD

Fair

Over: SOUTH BR FRENCH CREEK

NEAR LOAGS CORNER 11D1, Chester, PA

Built 1962 Load: 38.1 t ADT: 3,267

SCHUYLKILL ROAD

Fair

Over: PIGEON CREEK

NEAR SPRING CITY 7E6, Chester, PA

Built 1942 Load: 38.1 t ADT: 12,416

PENNOCK BRIDGE RD.

Fair

Over: BRANCH WHITE CLAY CREEK

NEW LONDON 53D1, Chester, PA

Built 1954 Load: 38.1 t ADT: 586

STREET ROAD

Fair

Over: TWEEDS CREEK

CAMP TWEEDALE GSA 42H13, Chester, PA

Built 1960 Load: 38.1 t ADT: 560

WAGONTOWN ROAD

Fair

Over: BRANCH ROCK RUN

N SIDE 30 BYPASS 28G2, Chester, PA

Built 1960 Load: 38.1 t ADT: 964

SUPLEE ROAD

Fair

Over: EAST BR BRANDYWINE CREEK

NEAR SUPLEE 10D9, Chester, PA

Built 1937 Load: 38.1 t ADT: 1,128

LITTLE ELK CRK RD

Fair

Over: BIG ELK CREEK

E.NOTTINGHAM TWP. 52E03, Chester, PA

Built 1981 Load: 38.1 t ADT: 1,265

SOUTH GUERNSEY RD.

Fair

Over: MIDDLE BR. WHITE CLAY CR

LONDON GROVE TWP. 45G12, Chester, PA

Built 1985 Load: 38.1 t ADT: 2,137

HARMONY HILL ROAD

Fair

Over: E BR OF BRANDYWINE CREEK

GIBSON BR E/W BRAD 30K07, Chester, PA

Built 1872 Load: 38.1 t ADT: 1,061

PA TPK (I-76)

Fair

Over: T-576

NEAR VALLEY FORGE PARK, Chester, PA

Built 1950 Load: 38.1 t ADT: 47,120

SR2007

Fair

Over: CLARION RIVER

PINEY NO.2, Clarion, PA

Built 1987 Load: 38.1 t ADT: 533

SR 1001

Fair

Over: W BR SUSQUEHANNA RIVER

HYDE, Clearfield, PA

Built 1975 Load: 38.1 t ADT: 6,886

SR 0011

Fair

Over: TRIB TO SUSQUEHANNA R.

5 MILES EAST OF BLOOMSBRG, Columbia, PA

Built 1949 Load: 38.1 t ADT: 8,875

CONN.CNTY BR#110

Fair

Over: FISHING CREEK

0.9 MI. W. OF ORANGEVILLE, Columbia, PA

Built 1989 Load: 38.1 t ADT: 720

SR 6 ERIE STREET

Fair

Over: OVER SHENANGO RIVER N BR

LINESVILLE BOROUGH, Crawford, PA

Built 1916 Load: 38.1 t ADT: 4,671

SR 1041 BRITTON RD

Fair

Over: OVER OIL CREEK EAST BR

ROME TOWNSHIP, Crawford, PA

Built 1892 Load: 38.1 t ADT: 178

US 11 SB; SR 0011

Fair

Over: SR 1014

NEAR CAMP HILL, Cumberland, PA

Built 1952 Load: 38.1 t ADT: 2,361

US 15; SR 0015

Fair

Over: PA 114; SR 0114

US 15 & PA 114 INTER., Cumberland, PA

Built 1977 Load: 38.1 t ADT: 54,665

I-81

Fair

Over: PETERSBURG RD; SR 2001

0.25 MI.S. OF PA 74, Cumberland, PA

Built 1963 Load: 38.1 t ADT: 27,946

T-512; CLAREMT DR.

Fair

Over: I-81; SR 0081

0.5 MI.N. OF PA 641, Cumberland, PA

Built 1963 Load: 38.1 t ADT: 7,847

I-81 SB; SR 0081

Fair

Over: PA 641; SR 0641

I-81 OVER PA 641, Cumberland, PA

Built 1963 Load: 38.1 t ADT: 22,909

T-596 SAMPLE BR RD

Fair

Over: I-81; SR 0081

1 MI.E. OF SR 0114, Cumberland, PA

Built 1973 Load: 38.1 t ADT: 1,427

US 22; SR 0022

Fair

Over: NORFOLK SOUTHERN RR

FIVE MI N OF DAUPHIN, Dauphin, PA

Built 1947 Load: 38.1 t ADT: 47,171

I-81 NB; SR 0081

Fair

Over: SR 3015

1 MI.N.OF PROGRESS, Dauphin, PA

Built 1969 Load: 38.1 t ADT: 41,585

T-525; BOW CK RD

Fair

Over: I-81; SR 0081

GRANTVILLE, Dauphin, PA

Built 1968 Load: 38.1 t ADT: 9,286

Showing 7,101-7,150 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.