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

WHIPPLE DAM ROAD

Fair

Over: LAUREL RUN

500 W OF LAUREL RUN RD, Huntingdon, PA

Built 1936 Load: 41.7 t ADT: 50

SR0022 EB&WB

Fair

Over: CONEMAUGH RIVER

BLAIRSVILLE NO.1, Indiana, PA

Built 1951 Load: 41.7 t ADT: 22,931

SR0286

Fair

Over: BIG RUN

ALBAN, Indiana, PA

Built 1936 Load: 41.7 t ADT: 2,431

SR0422 EB

Fair

Over: SR3024

WARREN ROAD EB, Indiana, PA

Built 1995 Load: 41.7 t ADT: 5,117

SR0422 WB

Fair

Over: SR3024

WARREN ROAD WB, Indiana, PA

Built 1995 Load: 41.7 t ADT: 4,665

SR3025

Fair

Over: HOOPER RUN

HOOPER RUN NO.1, Indiana, PA

Built 1942 Load: 41.7 t ADT: 221

SR3056

Fair

Over: TRIB TO CHERRY RUN

SEXTON ROAD NO.2, Indiana, PA

Built 1959 Load: 41.7 t ADT: 654

T-760 CHAMBERSVILL

Fair

Over: CROOKED CREEK

BTW T464 & SR4008, Indiana, PA

Built 1973 Load: 41.7 t ADT: 75

SR1830

Fair

Over: HORM RUN

HORM RUN, Jefferson, PA

Built 1987 Load: 41.7 t ADT: 132

SR2009

Fair

Over: MAHONING CREEK

CLOE NO.2, Jefferson, PA

Built 1961 Load: 41.7 t ADT: 933

SR3011

Fair

Over: BIG RUN

OLIVER TWP-S OF MARKTON, Jefferson, PA

Built 1938 Load: 41.7 t ADT: 149

T-718 PINE RUN CH

Fair

Over: LITTLE SANDY CREEK

0.1 MILE SOUTH OF SR 3031, Jefferson, PA

Built 1935 Load: 41.7 t ADT: 100

SR 22-US 22

Fair

Over: SR 35-PA 35

1 MI NE MIFFLINTOWN, Juniata, PA

Built 1972 Load: 41.7 t ADT: 7,250

SR 2017

Fair

Over: STONY RUN

3 MI W SEVEN STARS, Juniata, PA

Built 1960 Load: 41.7 t ADT: 169

SR 0107 TR 107

Fair

Over: RUSHBROOK CREEK

SCOTT TWP .5M W SR 1006, Lackawanna, PA

Built 1931 Load: 41.7 t ADT: 2,812

SR 0435 TR435;SIGN

Fair

Over: SR 0084 I-84 EB & WB

ROARING BR TWP OVER I-84, Lackawanna, PA

Built 1978 Load: 41.7 t ADT: 6,229

SR 1031

Fair

Over: SR 0081 I-81 NB & SB

SCOTT TWP OVER I-81, Lackawanna, PA

Built 1959 Load: 41.7 t ADT: 698

US 30; SR 0030

Fair

Over: PA 23 WALNUT ST

INTERSECTION PA23 & US30, Lancaster, PA

Built 1992 Load: 41.7 t ADT: 105,303

SR 1011

Fair

Over: MILL CREEK

0.75 MI.S. NEW HOLLAND, Lancaster, PA

Built 1984 Load: 41.7 t ADT: 4,001

SR2019 N Church St

Fair

Over: Trib to Beaver Creek

Quarryville, Lancaster, PA

Built 1950 Load: 41.7 t ADT: 767

SR 3017; River Rd

Fair

Over: Trib Conestoga River

0.5 mi.N.W. Safe Harbor, Lancaster, PA

Built 1943 Load: 41.7 t ADT: 2,314

BUENA VISTA ROAD

Fair

Over: PEQUEA CREEK

700 FT WEST OF SR 897, Lancaster, PA

Built 1995 Load: 41.7 t ADT: 210

WALNUT STREET

Fair

Over: PENN EASTERN RR

250 FEET NW OF 3RD ST, Lancaster, PA

Built 1965 Load: 41.7 t ADT: 1,965

US 0422 EB WB

Fair

Over: SANKEY RUN

150EAST OF SR 4007, Lawrence, PA

Built 1975 Load: 41.7 t ADT: 6,882

HILLTOWN BR

Fair

Over: MAHONING RIVER

037013 HILLTOWN BRIDGE, Lawrence, PA

Built 2007 Load: 41.7 t ADT: 200

KENNEDY RD

Fair

Over: UNNAMED STREAM

037019 SLIPPERY ROCK TWP, Lawrence, PA

Built 1918 Load: 41.7 t ADT: 100

I-78 W.B. SR 0078

Fair

Over: SR 8016 RAMP E

I-81 & I-78 INTER., Lebanon, PA

Built 1967 Load: 41.7 t ADT: 14,222

I-78 EB; SR 0078

Fair

Over: T-435

0.5 MI.E. OF SWATARA CK., Lebanon, PA

Built 1969 Load: 41.7 t ADT: 14,202

I-78 WB; SR 0078

Fair

Over: T-435 N LANCASTER ST.

1 MI.E. OF SWATARA CREEK, Lebanon, PA

Built 1969 Load: 41.7 t ADT: 14,222

NORTH 4TH STREET

Fair

Over: QUITTAPAHILLA CREEK

275 N OF WALNUT ST, Lebanon, PA

Built 1987 Load: 41.7 t ADT: 700

NORTH 8TH STREET

Fair

Over: QUITTAPAHILLA CREEK

425 NORTH OF WILLOW ST, Lebanon, PA

Built 1985 Load: 41.7 t ADT: 2,000

SR 2045(LR 153SP)

Fair

Over: TRIB. TO SAUCON CREEK

COOPERSBURG MAIN ST., Lehigh, PA

Built 1912 Load: 41.7 t ADT: 9,326

WALNUT STREET

Fair

Over: CATASAUQUA CREEK

AT ST. JOHN STREET, Lehigh, PA

Built 1950 Load: 41.7 t ADT: 1,000

SR 0029 TR 29

Fair

Over: SUSQUEHANNA RIVER & R.R.

HANOVER TWP JCT TR 11, Luzerne, PA

Built 1957 Load: 41.7 t ADT: 11,765

SR 0415 TR 415

Fair

Over: TOBY CREEK

DALLAS BO 200 S SR 1045, Luzerne, PA

Built 1941 Load: 41.7 t ADT: 15,449

GEORGES ROAD

Fair

Over: LITTLE WAPWALLOPEN CRK

SW OF STAIRVILLE, Luzerne, PA

Built 1996 Load: 41.7 t ADT: 50

SR 54

Fair

Over: W.B. SUSQUEHANNA RIVER

MONTGOMERY RIVER BRIDGE, Lycoming, PA

Built 1938 Load: 41.7 t ADT: 3,254

SR 554

Fair

Over: OVER HAGERMANS RUN

1.5 MI S OF S WMSPORT., Lycoming, PA

Built 1959 Load: 41.7 t ADT: 1,188

HIGH ST & SR 2016

Fair

Over: LYCOMING CREEK & RAMPS

CITY OF WMSPT. HIGH ST., Lycoming, PA

Built 1963 Load: 41.7 t ADT: 8,790

SR 2048

Fair

Over: LITTLE MUNCY CREEK

1MI.SE OF CLARKSTOWN, Lycoming, PA

Built 1957 Load: 41.7 t ADT: 236

SR 2053

Fair

Over: OVER WOLF RUN

1MI E OF PENNSDALE, Lycoming, PA

Built 1957 Load: 41.7 t ADT: 1,714

SR 62 MAIN ST

Fair

Over: OVER SANDY CREEK TRIB

SANDY LAKE TOWNSHIP, Mercer, PA

Built 1937 Load: 41.7 t ADT: 1,469

SR 80 WB

Fair

Over: OVER BLACK RUN

WOLF CREEK TOWNSHIP, Mercer, PA

Built 1965 Load: 41.7 t ADT: 12,866

SR 718 SIEG HILL

Fair

Over: OVER SHENANGO RIVER

SHENANGO TOWNSHIP, Mercer, PA

Built 1962 Load: 41.7 t ADT: 3,486

SR 3009 BUCKWATER

Fair

Over: OVER LT NESHANNOCK CK

LACKAWANNOCK TOWNSHIP, Mercer, PA

Built 1954 Load: 41.7 t ADT: 378

BRIDGE 1509 T-599

Fair

Over: OVER OTTER CREEK

DELAWARE RD. FAIRVIEW TWP, Mercer, PA

Built 1985 Load: 41.7 t ADT: 52

BRIDGE 1708 T-647

Fair

Over: OVER SANDY CREEK

TRIPLE LINK RD SANDY LK., Mercer, PA

Built 1986 Load: 41.7 t ADT: 121

DORCAS STREET

Fair

Over: KISHACOQUILLAS CREEK

800 FT NE OF LR 32, Mifflin, PA

Built 1975 Load: 41.7 t ADT: 5,347

I-80EB (LR1002)

Fair

Over: TWP RD 481*(STADDEN RD.)

2.6 MI. W. OF PA33, Monroe, PA

Built 1963 Load: 41.7 t ADT: 24,792

BYBERRY ROAD

Fair

Over: POQUESSING CREEK

L MORELAND 3260F10, Montgomery, PA

Built 1990 Load: 41.7 t ADT: 10,634

Showing 8,351-8,400 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.