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

MAIN STREET

Poor

Over: B&P RAILROAD

HARMONY MAIN STREET, Butler, PA

Built 1916 Load: 32.7 t ADT: 50

T-520(MECKES LANE)

Poor

Over: BLACK CREEK

N.OF I80 I MI.W.OF TPKE., Carbon, PA

Built 1890 Load: 32.7 t ADT: 50

SR 3022

Poor

Over: SR 26-PA 26

STATE COLLEGE BORO, Centre, PA

Built 1960 Load: 32.7 t ADT: 10,875

AIRPORT ROAD

Poor

Over: ROUTE 30 BY-PASS

WEST COATESVILLE 28B4, Chester, PA

Built 1961 Load: 32.7 t ADT: 5,411

KINGS ROW ROAD

Poor

Over: BIG ELK CREEK

NEW LONDON;ELK TWP.52F07, Chester, PA

Built 1875 Load: 32.7 t ADT: 188

VALLEY WAY (T-407)

Poor

Over: SOUTH BR OF FRENCH CREEK

1.5 Mi S. PA-23 3249-B7, Chester, PA

Built 1913 Load: 32.7 t ADT: 73

DENTON HOLLOW ROAD

Poor

Over: POCOPSON CREEK

POCOPSON TOWNSHIP 3692-H6, Chester, PA

Built 1914 Load: 32.7 t ADT: 135

SR4004

Poor

Over: LICKING CREEK

LICKINGVILLE NO.2, Clarion, PA

Built 1960 Load: 32.7 t ADT: 763

T-921 TOWN RUN RD

Poor

Over: TOWN RUN

2.0 mi NW of Hawthorne, Clarion, PA

Built 1937 Load: 32.7 t ADT: 350

SR 879-PA 879

Poor

Over: DEER CREEK

2 MI E LECONTES MILLS, Clearfield, PA

Built 1956 Load: 32.7 t ADT: 1,112

T-729 GERMANIA RD

Poor

Over: SANDY CREEK

200 FT SW OF T-731, Clearfield, PA

Built 1915 Load: 32.7 t ADT: 25

S FRANKLIN STREET

Poor

Over: PENTZ RUN

60 FT S OF WEBER AVE INT, Clearfield, PA

Built 1930 Load: 32.7 t ADT: 75

SR 0254

Poor

Over: TRIB TO FISHING CREEK

.7 MI S OF BENTON BORO, Columbia, PA

Built 1923 Load: 32.7 t ADT: 867

SR 4032

Poor

Over: LITTLE BRIER RUN

3 MI WEST OF UNITYVILLE, Columbia, PA

Built 1936 Load: 32.7 t ADT: 122

T-826 BENTON BR #1

Poor

Over: RAVEN CREEK

1.75 MI. NE OF BENTON, Columbia, PA

Built 1928 Load: 32.7 t ADT: 150

T-574 CTY BR#127

Poor

Over: PINE CREEK

0.9 MI. NE OF JONESTOWN, Columbia, PA

Built 1965 Load: 32.7 t ADT: 50

T-455 (GRN BR # 4)

Poor

Over: GREEN CREEK

0.6 MI NNW OF ROHRSBURG, Columbia, PA

Built 1936 Load: 32.7 t ADT: 50

T-682 CTY BR#141

Poor

Over: GREEN CREEK

2 MI. WEST OF BENTON, Columbia, PA

Built 1923 Load: 32.7 t ADT: 50

T-409 MIFFLIN BR#2

Poor

Over: TEN MILE RUN

2.4 MI S. OF MIFFLINVILLE, Columbia, PA

Built 1936 Load: 32.7 t ADT: 100

T-356 CTY BR #57

Poor

Over: MONTOUR RUN

0.5 MI. NW OF RUPERT, Columbia, PA

Built 1927 Load: 32.7 t ADT: 150

SR1007 ROCKDALE RD

Poor

Over: OVER FEDERAL RUN

BLOOMFIELD TOWNSHIP, Crawford, PA

Built 1988 Load: 32.7 t ADT: 213

SR 1015 GSPL. HILL

Poor

Over: OVER HOTCH KISS RUN

CUSSEWAGO TOWNSHIP, Crawford, PA

Built 1951 Load: 32.7 t ADT: 454

SR 2012 WOODCOCK

Poor

Over: OVER HUNTER RUN

EAST MEAD TOWNSHIP, Crawford, PA

Built 1954 Load: 32.7 t ADT: 315

T-791 MICKEL HOLW.

Poor

Over: OVER FEDERAL RUN

2.5 MI WSW OF LINCOLNVILL, Crawford, PA

Built 1983 Load: 32.7 t ADT: 250

T-639 BOG HOLLOW

Poor

Over: OVER MCLAUGHLIN CREEK

2.0 MI.N.OF HYDETOWN, Crawford, PA

Built 1947 Load: 32.7 t ADT: 250

T-926 DOTYVILLE RD

Poor

Over: OVER HENDERSON RUN

2.8 MI. E. OF TITUSVILLE, Crawford, PA

Built 1945 Load: 32.7 t ADT: 250

T-873 RACOP ROAD

Poor

Over: OVER TORRY RUN

4 MI. N. VENANGO, Crawford, PA

Built 1915 Load: 32.7 t ADT: 250

LIBERTY STREET

Poor

Over: OVER MILL RUN

LIBERTY ST MEADVILLE, Crawford, PA

Built 1910 Load: 32.7 t ADT: 2,500

MERCER STREET

Poor

Over: OVER FRENCH CREEK

MERCER STREET MEADVILLE, Crawford, PA

Built 1936 Load: 32.7 t ADT: 9,000

US 11; RITNER HWY

Poor

Over: BURDS RUN

BORO OF SHIPPENSBURG, Cumberland, PA

Built 1940 Load: 32.7 t ADT: 6,223

PA 147; S.RIVER RD

Poor

Over: POWELLS CREEK

QUARTER MI S OF INGLENOOK, Dauphin, PA

Built 1860 Load: 32.7 t ADT: 6,401

PA 147; Market st.

Poor

Over: SHIPPEN RUN

MILLERSBURG, Dauphin, PA

Built 1920 Load: 32.7 t ADT: 4,055

SR 2011 BACHVILLE

Poor

Over: BRANCH OF SPRING CREEK

2 MI.S. OF HERSHEY, Dauphin, PA

Built 1920 Load: 32.7 t ADT: 1,822

SR 3024 LOCUST LN.

Poor

Over: TRIB TO BEAVER CREEK

3 MI. S. LINGLESTOWN, Dauphin, PA

Built 1959 Load: 32.7 t ADT: 6,558

SR 4001

Poor

Over: ARMSTRONG CREEK

3.5 MI S W ELIZABETHVILLE, Dauphin, PA

Built 1974 Load: 32.7 t ADT: 470

CONCHESTER HIGHWAY

Poor

Over: CSX RAILROAD

1MILE WEST OF I-95 42J06, Delaware, PA

Built 1949 Load: 32.7 t ADT: 29,211

BEECHWOOD DRIVE

Poor

Over: COBBS CREEK

At Karakung Dr 3588-D3, Delaware, PA

Built 1907 Load: 32.7 t ADT: 1,200

T-521 PAROLARI RD

Poor

Over: LITTLE TOBY CREEK

700 FT EAST SR 219, Elk, PA

Built 1916 Load: 32.7 t ADT: 50

SR 2018 ELGIN RD

Poor

Over: OVER FRENCH CREEK S BR

CONCORD TOWNSHIP, Erie, PA

Built 1966 Load: 32.7 t ADT: 791

T-313 SHERROD HILL

Poor

Over: CUSSEWAGO CREEK

1500 EAST OF SR 98, Erie, PA

Built 1970 Load: 32.7 t ADT: 106

T-479 FRANCIS ROAD

Poor

Over: LITTLE ELK CREEK

670 E OF STATE ROAD, Erie, PA

Built 1978 Load: 32.7 t ADT: 254

T-602 DONATION RD.

Poor

Over: E BR LEBOEUF CREEK

1500 SE OF SAMPSON RD, Erie, PA

Built 1988 Load: 32.7 t ADT: 756

SR 0653

Poor

Over: INDIAN CREEK

SPRINGFIELD TOWNSHIP, Fayette, PA

Built 1968 Load: 32.7 t ADT: 1,221

SR 4016

Poor

Over: REDSTONE CREEK

REDSTONE TOWNSHIP, Fayette, PA

Built 1927 Load: 32.7 t ADT: 524

BERKELEY STREET

Poor

Over: COAL LICK RUN

500 S OF MT VERNON AVE, Fayette, PA

Built 1913 Load: 32.7 t ADT: 200

ELM STREET

Poor

Over: OVER TIONESTA CREEK

TIONESTA BOROUGH, Forest, PA

Built 1919 Load: 32.7 t ADT: 275

ANDERSON ROAD

Poor

Over: CONOCOCHEAGUE CREEK W BR

0.85 MI NE OF SR 416, Franklin, PA

Built 1820 Load: 32.7 t ADT: 150

PA 655

Poor

Over: OWL RUN

ANDOVER, Fulton, PA

Built 1923 Load: 32.7 t ADT: 470

SR 3011

Poor

Over: BARNETTS RUN

NEEDMORE, Fulton, PA

Built 1924 Load: 32.7 t ADT: 216

SR 3013

Poor

Over: STEWART RUN

CENTER TOWNSHIP, Greene, PA

Built 1926 Load: 32.7 t ADT: 351

Showing 22,351-22,400 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.