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 322 28TH DIV HW

Fair

Over: OVER LITTLE SUGAR CREEK

WAYNE TOWNSHIP, Crawford, PA

Built 1962 Load: 33.6 t ADT: 3,470

SR 1016 BROWN HILL

Fair

Over: OVER MOSEY RUN

BLOOMFIELD TOWNSHIP, Crawford, PA

Built 1956 Load: 33.6 t ADT: 291

SR 2014 SUGAR LAKE

Fair

Over: OVER LITTLE SUGAR CREEK

EAST FAIRFIELD TOWNSHIP, Crawford, PA

Built 1962 Load: 33.6 t ADT: 416

SR 4006 STEAMBURG

Fair

Over: OVER PADEN CREEK

CONNEAUT TOWNSHIP, Crawford, PA

Built 1935 Load: 33.6 t ADT: 49

I-81; SR 0081

Fair

Over: GUM RUN

5 MI.S. EXIT 29, Cumberland, PA

Built 1963 Load: 33.6 t ADT: 39,826

I-81 NB; SR 0081

Fair

Over: WALNUT BOTTOM RD.

COLLEGE ST. EXIT 13, Cumberland, PA

Built 1962 Load: 33.6 t ADT: 26,773

PA 581 SR0581

Fair

Over: SR 2014 SR 2033 NORFLK S

LOWER ALLEN TWP, Cumberland, PA

Built 1960 Load: 33.6 t ADT: 81,787

2004 S. Market St

Fair

Over: YELLOW BREECHES CREEK

BOWMANSDALE, Cumberland, PA

Built 1961 Load: 33.6 t ADT: 5,697

2021 Rossmoyne Rd

Fair

Over: US 15; SR 0015

1 MI.S. OF L.R. 21079, Cumberland, PA

Built 1970 Load: 33.6 t ADT: 21,405

T-568 (Eppley Rd)

Fair

Over: PA TPK (I-76)

MONROE TWP, Cumberland, PA

Built 1950 Load: 33.6 t ADT: 200

I-81 SB; SR 0081

Fair

Over: INDUSTRAIL HIGHWAY

OVER IND. HIGHWAY, Dauphin, PA

Built 1975 Load: 33.6 t ADT: 26,805

I-83; SR 0083

Fair

Over: PA 230;NS;RP B C;FRONT

SOUTH HARRISBURG, Dauphin, PA

Built 1960 Load: 33.6 t ADT: 86,043

ARMSTRONG VALLEY R

Fair

Over: ARMSTRONG CREEK

HALIFAX BORO, Dauphin, PA

Built 1969 Load: 33.6 t ADT: 5,896

PA 230; SR 0230

Fair

Over: CONEWAGO CREEK

5 MI. S.E. MIDDLETOWN, Dauphin, PA

Built 1969 Load: 33.6 t ADT: 6,426

US 322 WB; SR 0322

Fair

Over: SR 3001; (US 322 EB)

EISENHOWER, Dauphin, PA

Built 1970 Load: 33.6 t ADT: 21,239

US 322 EB; SR 0322

Fair

Over: SR 3030 & ABANDONED RR

CHAMBERS HILL, Dauphin, PA

Built 1970 Load: 33.6 t ADT: 17,681

PA 325 SR 0325

Fair

Over: CLARKS CREEK

3 MI. N.E. DAUPHIN, Dauphin, PA

Built 1941 Load: 33.6 t ADT: 783

SR 1006 RAKERS MIL

Fair

Over: WICONISCO CREEK

2 MI S BERRYSBURG, Dauphin, PA

Built 1962 Load: 33.6 t ADT: 246

SR 2003

Fair

Over: SWATARA CREEK

S. HANOVER TOWNSHIP, Dauphin, PA

Built 1921 Load: 33.6 t ADT: 3,839

PROGRESS AVE

Fair

Over: PAXTON CREEK

1.5 MI. N. PROGRESS, Dauphin, PA

Built 1966 Load: 33.6 t ADT: 11,890

SR 4013

Fair

Over: W BRANCH OF RATTLING CR

1.25 MI.S. LYKENS, Dauphin, PA

Built 1934 Load: 33.6 t ADT: 341

LEBO RD (T-446)

Fair

Over: POWELL CREEK

.4S ENTERLINE/POWELL CRK, Dauphin, PA

Built 1999 Load: 33.6 t ADT: 50

GRUBB ST; MIDDLETO

Fair

Over: SWATARA CREEK

GRUBB ST; MIDDLETOWN BORO, Dauphin, PA

Built 1992 Load: 33.6 t ADT: 900

INTERSTATE 95(NB)

Fair

Over: MARCUS HOOK CREEK

.3MI.S.PENNA.452 42G08, Delaware, PA

Built 1967 Load: 33.6 t ADT: 64,962

INTERSTATE 95(SB)

Fair

Over: MARCUS HOOK CREEK

.3MI.S.PENNA.452 42G08, Delaware, PA

Built 1967 Load: 33.6 t ADT: 68,764

FOULK ROAD

Fair

Over: CONCHESTER HIGHWAY

3MI.SE.CONCORDVIL. 41K03, Delaware, PA

Built 1947 Load: 33.6 t ADT: 8,115

CHESTER ROAD

Fair

Over: MID-COUNTY EXWY;CRUM CK.

1MI.TO CHESTER 34H11, Delaware, PA

Built 1989 Load: 33.6 t ADT: 8,620

PAXON HOLLOW ROAD

Fair

Over: TROUT RUN

PAXON HOLLOW C.C. 25E12, Delaware, PA

Built 1987 Load: 33.6 t ADT: 2,201

MARSHALL ROAD

Fair

Over: NAYLORS RUN

.1MI.W.LONG LANE 27A12, Delaware, PA

Built 1966 Load: 33.6 t ADT: 18,619

GARNET MINE ROAD

Fair

Over: GREEN CREEK

WEST OF TR 322 3805 D03, Delaware, PA

Built 1940 Load: 33.6 t ADT: 1,934

I-95 RAMP E

Fair

Over: RAMP TO CHESTNUT STREET

CHESTNUT ST.INTER.3807D03, Delaware, PA

Built 1968 Load: 33.6 t ADT: 5,452

SR 6 W. CENTER ST.

Fair

Over: OVER FRENCH CREEK BRANCH

MILL VILLAGE BOROUGH, Erie, PA

Built 1955 Load: 33.6 t ADT: 2,692

SR 20 W.26TH.ST EB

Fair

Over: OVER 4017 PITTSBURG AVE

CITY OF ERIE, Erie, PA

Built 1972 Load: 33.6 t ADT: 5,698

SR 20 BUFFALO ROAD

Fair

Over: OVER TWELVE MILE CREEK

NORTH EAST TOWNSHIP, Erie, PA

Built 1954 Load: 33.6 t ADT: 8,098

SR 79 NB

Fair

Over: OVER SR 3008 CRANE ROAD

FRANKLIN TOWNSHIP, Erie, PA

Built 1969 Load: 33.6 t ADT: 9,091

SR 1004 WILDMAN RD

Fair

Over: OVER FRENCH CREEK W BR

GREENFIELD TOWNSHIP, Erie, PA

Built 1941 Load: 33.6 t ADT: 351

SR 1019 GAY ROAD

Fair

Over: OVER SR 90 EB/WB

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 33.6 t ADT: 235

SR 4007 DUTCH RUN

Fair

Over: OVER WALNUT CREEK

FAIRVIEW TOWNSHIP, Erie, PA

Built 1963 Load: 33.6 t ADT: 690

SR 0857

Fair

Over: RUBLES RUN

SPRINGHILL TOWNSHIP, Fayette, PA

Built 1960 Load: 33.6 t ADT: 3,833

SR 0982

Fair

Over: GREEN LICK RUN

BULLSKIN TOWNSHIP, Fayette, PA

Built 1930 Load: 33.6 t ADT: 4,331

SR 1028

Fair

Over: GIST RUN

DUNBAR TOWNSHIP, Fayette, PA

Built 1941 Load: 33.6 t ADT: 649

T337 OLD McCLEL RD

Fair

Over: N BR BROWNS RUN TRIB

575 FT WEST OF COLLEGE AV, Fayette, PA

Built 1940 Load: 33.6 t ADT: 500

BRIDGE STREET

Fair

Over: DUNBAR CREEK

IN DUNBAR BOROUGH, Fayette, PA

Built 1977 Load: 33.6 t ADT: 400

SR 36 COL DRAKE HW

Fair

Over: OVER HUNTER RUN

TIONESTA TOWNSHIP, Forest, PA

Built 1959 Load: 33.6 t ADT: 1,584

SR 1005 WATSON FRM

Fair

Over: OVER BLUE JAY CREEK

HOWE TOWNSHIP, Forest, PA

Built 1961 Load: 33.6 t ADT: 67

PA 75; Path Valley

Fair

Over: SPRING RUN

SPRING RUN, Franklin, PA

Built 1955 Load: 33.6 t ADT: 2,314

PA 997; Cumb.hwy.

Fair

Over: CONODOGUINET CREEK

0.25 MI.S. OF ROXBURY, Franklin, PA

Built 1929 Load: 33.6 t ADT: 4,225

WOODSTOCK RD

Fair

Over: CONOCOCHEAGUE CREEK

0.8 MI NORTH OF SR 1008, Franklin, PA

Built 1978 Load: 33.6 t ADT: 250

T458 JACK MILLS RD

Fair

Over: BACK CREEK

1 MI NW OF SR 995, Franklin, PA

Built 1976 Load: 33.6 t ADT: 200

I-70 EBL

Fair

Over: MCKEES RUN

AMARANTH EXIT 163, Fulton, PA

Built 1960 Load: 33.6 t ADT: 7,008

Showing 5,351-5,400 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.