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

I-81 SB; SR 0081

Fair

Over: T-545; STONE HOUSE RD.

5.5 MI.S. OF CARLISLE, Cumberland, PA

Built 1963 Load: 29.9 t ADT: 20,276

I-81 SB; SR 0081

Fair

Over: ALEXANDERS SPRING CREEK

3 MI.S. OF CARLISLE, Cumberland, PA

Built 1963 Load: 29.9 t ADT: 20,276

I-81 SB; SR 0081

Fair

Over: T-516; SPRING GARDEN ST.

0.3 MI.N. OF PA 34, Cumberland, PA

Built 1962 Load: 29.9 t ADT: 27,946

WEST BURD STREET

Fair

Over: MIDDLE SPRING CREEK

.2 MI. NW US 11 & PA 696, Cumberland, PA

Built 1993 Load: 29.9 t ADT: 4,000

US 22/322 WB;SR 22

Fair

Over: SUSQ. R.; SR 0147 SB RP

.5 MI. EAST OF DUNCANNON, Dauphin, PA

Built 1986 Load: 29.9 t ADT: 27,209

PA 283 EB; SR 0300

Fair

Over: TWP RD 602

6 MI. E. OF MIDDLETOWN, Dauphin, PA

Built 1968 Load: 29.9 t ADT: 21,988

PA 283 WB; SR 0300

Fair

Over: TWP RD 602

6 MI. E. MIDDLETOWN, Dauphin, PA

Built 1968 Load: 29.9 t ADT: 23,485

PA 443; SR 0443

Fair

Over: NORFOLK SOUTHERN RR

FORT HUNTER, Dauphin, PA

Built 1977 Load: 29.9 t ADT: 1,556

SR 4009

Fair

Over: WICONISCO CREEK

MILLERSBURG, Dauphin, PA

Built 1960 Load: 29.9 t ADT: 1,814

WOODSIDE STA. T460

Fair

Over: WICONISCO CREEK

2E MILLERSBURG/WICONISCO, Dauphin, PA

Built 1974 Load: 29.9 t ADT: 25

FEIDT ROAD (T-462)

Fair

Over: WICONISCO CREEK

COOPER/2NW E-VLLE/WICONIS, Dauphin, PA

Built 1973 Load: 29.9 t ADT: 100

INTERSTATE 95(SB)

Fair

Over: RELOC.BARTRAM AV;CONRAIL

NR.SCOTTS PAPER 36B13, Delaware, PA

Built 1983 Load: 29.9 t ADT: 60,920

MARKET STREET

Fair

Over: CSX RAILROAD

SOUTH ROUTE 322 42H06, Delaware, PA

Built 1987 Load: 29.9 t ADT: 16,374

GOSHEN ROAD

Fair

Over: DARBY CREEK

RADNOR TOWNSHIP 25F03, Delaware, PA

Built 1905 Load: 29.9 t ADT: 6,363

ORANGE STREET

Fair

Over: SEPTA (P&W)

S.BALTIMORE PIKE 34B06, Delaware, PA

Built 1918 Load: 29.9 t ADT: 2,451

US 322

Fair

Over: DELAWARE RIVER

2 MILES WEST OF US 130, Bradford, PA

Built 1974 Load: 29.9 t ADT: 39,131

RAMP M2 TO I-95 NB

Fair

Over: RELOC. CRUM CREEK

AT 795 INTERCHANGE 43J01, Delaware, PA

Built 1975 Load: 29.9 t ADT: 28,196

SR 8 WATTSBURG RD

Fair

Over: OVER ALDER BROOK

VENANGO TOWNSHIP, Erie, PA

Built 1950 Load: 29.9 t ADT: 3,820

SR 505 PERRY HWY

Fair

Over: OVER MILL CREEK

MILL CREEK TOWNSHIP, Erie, PA

Built 1952 Load: 29.9 t ADT: 7,782

T-541 ABLES ROAD

Fair

Over: CROOKED CREEK

600 EAST OF HOLLIDAY RD, Erie, PA

Built 1911 Load: 29.9 t ADT: 105

SR 1050

Fair

Over: LITTLE CHAMPION CREEK

SALTLICK TOWNSHIP, Fayette, PA

Built 1938 Load: 29.9 t ADT: 1,470

SR 2019

Fair

Over: JONATHAN RUN

STEWART TOWNSHIP, Fayette, PA

Built 1938 Load: 29.9 t ADT: 207

SR 3012

Fair

Over: NORTH BRANCH BROWNS RUN

GERMAN TOWNSHIP, Fayette, PA

Built 1953 Load: 29.9 t ADT: 1,449

FOX HOLLOW ROAD

Fair

Over: GEORGES CREEK

0.9 MI SE OF US 119, Fayette, PA

Built 1979 Load: 29.9 t ADT: 600

KILLARNEY RD.

Fair

Over: MILL RUN

MILL RUN JUNCTION, Fayette, PA

Built 1918 Load: 29.9 t ADT: 100

PA 75; Path Valley

Fair

Over: BR.TUSCARORA CREEK

.25 MI.N.OF CONCORD, Franklin, PA

Built 1930 Load: 29.9 t ADT: 751

SR 1003

Fair

Over: CONOCOCHEAGUE CREEK

.5 MI.W.OF WOODSTOCK, Franklin, PA

Built 1970 Load: 29.9 t ADT: 5,072

SR 4018 (TWP RD)

Fair

Over: PAXTON RUN

NEAR MOWERSVILLE, Franklin, PA

Built 1964 Load: 29.9 t ADT: 393

WATERLOO ROAD

Fair

Over: FALLS CREEK

3.7SE WAYNESBORO/FALLS CR, Franklin, PA

Built 1934 Load: 29.9 t ADT: 100

I-70 EBL

Fair

Over: LITTLE TONOLOWAY CREEK

2.19 MI EAST OF EXIT 163, Fulton, PA

Built 1960 Load: 29.9 t ADT: 7,008

I-70 WBL

Fair

Over: LITTLE TONOLOWAY CREEK

2.75 MI WEST OF EXIT 168, Fulton, PA

Built 1960 Load: 29.9 t ADT: 7,022

PA 655

Fair

Over: WOODEN BRIDGE CREEK

1MI.NW OF HUSTONTOWN, Fulton, PA

Built 1923 Load: 29.9 t ADT: 2,085

SR 3006

Fair

Over: LITTLE TONOLOWAY CREEK

1.4 MILE EAST OF SR 3007, Fulton, PA

Built 1959 Load: 29.9 t ADT: 105

SR 0079

Fair

Over: TWP. ROAD 389 & BELL RUN

PERRY TOWNSHIP, Greene, PA

Built 1973 Load: 29.9 t ADT: 10,321

SR 2030 (T-409)

Fair

Over: SR 0079

WHITELEY TOWNSHIP, Greene, PA

Built 1973 Load: 29.9 t ADT: 141

SR 3001

Fair

Over: CRABAPPLE CREEK

RICHHILL TOWNSHIP, Greene, PA

Built 1966 Load: 29.9 t ADT: 102

SR 4021

Fair

Over: BRANCH OF BROWNS CREEK

MORRIS TOWNSHIP, Greene, PA

Built 1967 Load: 29.9 t ADT: 80

SR 4033

Fair

Over: RUFF CREEK

WASHINGTON TOWNSHIP, Greene, PA

Built 1968 Load: 29.9 t ADT: 288

T387 WRIGHT ROAD

Fair

Over: LITTLE TROUGH CREEK

1.8 MI.NW.OF CASSVILLE, Huntingdon, PA

Built 1900 Load: 29.9 t ADT: 55

SR0119

Fair

Over: PINE RUN

MARION CENTER NO.3, Indiana, PA

Built 1925 Load: 29.9 t ADT: 4,149

SR2027

Fair

Over: LITTLE YELLOW CREEK

SUNCLIFF NO.3, Indiana, PA

Built 1978 Load: 29.9 t ADT: 157

T-633 SPRUCE GROVE

Fair

Over: YELLOW CREEK

BTW T752 & T864, Indiana, PA

Built 1950 Load: 29.9 t ADT: 50

SR0080 WB

Fair

Over: ABAND CONRAIL RR

TRIANGLE TECH WB, Jefferson, PA

Built 1970 Load: 29.9 t ADT: 6,616

SR1010

Fair

Over: NORTH FORK CREEK

BLOWTOWN NO.2, Jefferson, PA

Built 1961 Load: 29.9 t ADT: 292

SR2019

Fair

Over: MAHONING CREEK

BELLS MILLS, Jefferson, PA

Built 1970 Load: 29.9 t ADT: 1,134

SR3003

Fair

Over: CODER RUN

NEAR ROSEVILLE, Jefferson, PA

Built 1984 Load: 29.9 t ADT: 140

T-572 FERMANTOWN

Fair

Over: LITTLE TOBY CREEK

0.8 MI S. OF SR219, Jefferson, PA

Built 1981 Load: 29.9 t ADT: 104

SR 22-US 22

Fair

Over: TOWNSHIP ROAD 466

THOMPSONTOWN, Juniata, PA

Built 1972 Load: 29.9 t ADT: 9,036

SR 0247 TR 247

Fair

Over: S BR TUNKHANNOCK CREEK

SCOTT TWP .2 M S TR 438, Lackawanna, PA

Built 1950 Load: 29.9 t ADT: 5,166

SR 0438 TR 438

Fair

Over: SOUTH BR TUNKHANNOCK CR

SCOTT TWP JCT TR 524, Lackawanna, PA

Built 1928 Load: 29.9 t ADT: 1,333

Showing 3,001-3,050 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.