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

PA 100 BYPASS

Fair

Over: US 202 BY-PASS

N. W. CHESTER 32D5/3583F2, Chester, PA

Built 1968 Load: 30.8 t ADT: 14,996

STREET ROAD

Fair

Over: LEECH RUN

CAMP TWEEDALE GSA 43B11, Chester, PA

Built 1924 Load: 30.8 t ADT: 516

E. LINCOLN HIGHWAY

Fair

Over: VALLEY CREEK

E OF 100 N OF US 30 21H11, Chester, PA

Built 1999 Load: 30.8 t ADT: 11,624

FLINT HILL ROAD

Fair

Over: W BR. WHITE CLAY CREEK

LONDON BRITAIN TWP.54A06, Chester, PA

Built 1923 Load: 30.8 t ADT: 1,530

SR2001

Fair

Over: PINE CREEK

SHANNONDALE, Clarion, PA

Built 1993 Load: 30.8 t ADT: 629

(FOREST )GORDON RD

Fair

Over: SR 80-I 80

2 MI W EXIT 111, Clearfield, PA

Built 1970 Load: 30.8 t ADT: 9

SR 220-US 220 SB

Fair

Over: BALD EAGLE CREEK

2 MI E MILL HALL, Clinton, PA

Built 1976 Load: 30.8 t ADT: 8,409

SR 220-US 220

Fair

Over: W BR SUSQUE R & T-425

1 MILE EAST MCELHATTAN, Clinton, PA

Built 1976 Load: 30.8 t ADT: 7,913

SR 220-US 220

Fair

Over: W BR SUSQUE R & T-425

1 MILE EAST MCELHATTAN, Clinton, PA

Built 1976 Load: 30.8 t ADT: 7,952

SR 1005

Fair

Over: SUSQUE R T-425 & T-565

MCELHATTAN, Clinton, PA

Built 1971 Load: 30.8 t ADT: 3,265

SR 1035

Fair

Over: OVER RAVEN CREEK

2 MI NE OF STILLWATER, Columbia, PA

Built 1958 Load: 30.8 t ADT: 118

SR 4032/TALMER RD

Fair

Over: LITTLE FISHING CREEK

8 MI NE OF SERENO, Columbia, PA

Built 1941 Load: 30.8 t ADT: 122

SR 89 UNION STREET

Fair

Over: OVER CHURCH RUN

CITY OF TITUSVILLE, Crawford, PA

Built 1903 Load: 30.8 t ADT: 2,578

SR 2007 PETTIS RD

Fair

Over: OVER MUD RUN

EAST FAIRFIELD TOWNSHIP, Crawford, PA

Built 1952 Load: 30.8 t ADT: 823

SR 4001 BEAVER CNT

Fair

Over: OVER CONNEAUT CREEK W BR

BEAVER TOWNSHIP, Crawford, PA

Built 1961 Load: 30.8 t ADT: 414

SR 4001 BEAVER CNT

Fair

Over: OVER CONNEAUT CREEK E BR

BEAVER TOWNSHIP, Crawford, PA

Built 1940 Load: 30.8 t ADT: 408

I-81 NB; SR 0081

Fair

Over: T-480; SHAGBARK LN

3 MI.S. OF CARLISLE, Cumberland, PA

Built 1963 Load: 30.8 t ADT: 20,565

I-81 NB; SR 0081

Fair

Over: SPRING GARDEN; T-516

0.3 MI.NORTH OF PA 34, Cumberland, PA

Built 1962 Load: 30.8 t ADT: 27,794

DICKINSON SCH.T470

Fair

Over: TRIB. YELLOW BREECHES CR

1.8NE MONTSERA/TR.YEL.BR., Cumberland, PA

Built 1980 Load: 30.8 t ADT: 100

US 22 EB; SR 0022

Fair

Over: Norfolk Southern RR

ROCKVILLE, Dauphin, PA

Built 1977 Load: 30.8 t ADT: 16,211

US 22 WB; SR 0022

Fair

Over: Norfolk Southern RR

ROCKVILLE, Dauphin, PA

Built 1977 Load: 30.8 t ADT: 20,777

PA 147; SR 0147

Fair

Over: ARMSTRONG CREEK

HALF MI N OF HALIFAX BORO, Dauphin, PA

Built 1921 Load: 30.8 t ADT: 6,189

I-283 NB; SR 0283

Fair

Over: SR 3002

1 MI.N. OF HIGHSPIRE, Dauphin, PA

Built 1969 Load: 30.8 t ADT: 24,393

I-283 SB; SR 0283

Fair

Over: SR 3002

2 MI.N.HIGHSPIRE, Dauphin, PA

Built 1969 Load: 30.8 t ADT: 22,317

PA 743; SR 0743

Fair

Over: SWATARA CREEK

2 MI. N.E. OF HERSHEY, Dauphin, PA

Built 1976 Load: 30.8 t ADT: 10,517

SR 1017 HONEY TRL.

Fair

Over: TRIBUTARY TO PINE CREEK

3 MI E GRATZ, Dauphin, PA

Built 1982 Load: 30.8 t ADT: 232

SR 2023 TOLLHOUSE

Fair

Over: PA 283; SR 0300

2.5 MI. E. MIDDLETOWN, Dauphin, PA

Built 1969 Load: 30.8 t ADT: 2,647

SR 3032 OBERLIN RD

Fair

Over: PA 283; SR 0300

2 MI. N.E. HIGHSPIRE, Dauphin, PA

Built 1971 Load: 30.8 t ADT: 15,155

PA TPK (I-76)

Fair

Over: T-333

LOWER SWATARA TWP, Dauphin, PA

Built 1949 Load: 30.8 t ADT: 24,423

CMP HEBRON RD T551

Fair

Over: POWELL CREEK

C.HEBRN/2.7SE HLFAX/POWLL, Dauphin, PA

Built 1973 Load: 30.8 t ADT: 100

CARSONVILLE ROAD

Fair

Over: NORTH FORK POWELL CREEK

CARSONVILLE BR/POWELL CR, Dauphin, PA

Built 1979 Load: 30.8 t ADT: 100

SPAIN ROAD T-651

Fair

Over: MAHANTANGO CREEK

HEBE/2.8NE PILLOW/MAHANTG, Dauphin, PA

Built 1973 Load: 30.8 t ADT: 75

T-373

Fair

Over: BEAVER CREEK

.8NW HUMMELSTWN/BEAVER CR, Dauphin, PA

Built 1981 Load: 30.8 t ADT: 400

WATER STREET T-605

Fair

Over: WICONISCO CREEK

.2SW WMTWN/WICONISCO CRK, Dauphin, PA

Built 1980 Load: 30.8 t ADT: 100

INTERSTATE 95(SB)

Fair

Over: SELLERS AVENUE

.2MI.N.STEWART AVE.44C01, Delaware, PA

Built 1975 Load: 30.8 t ADT: 68,060

MAIN STREET

Fair

Over: COBBS CREEK

W.COBBS CREEK PK. 36D05, Delaware, PA

Built 1909 Load: 30.8 t ADT: 11,682

LANSDOWNE AVENUE

Fair

Over: NAYLORS RUN

NORTH STATE ROAD 26H10, Delaware, PA

Built 1966 Load: 30.8 t ADT: 24,098

GARRETT ROAD

Fair

Over: NAYLORS RUN

.3MI.EAST LR23047 26K12, Delaware, PA

Built 1954 Load: 30.8 t ADT: 11,210

DUTTON MILL ROAD

Fair

Over: CHESTER CREEK

ASTON TWP.LINE 42K01, Delaware, PA

Built 1966 Load: 30.8 t ADT: 10,378

RAMP M2;NB ON

Fair

Over: PADOT STOCK PILE;CRUM CK

JUNCTION W/I-476 43K01, Delaware, PA

Built 1975 Load: 30.8 t ADT: 28,196

SR 1008

Fair

Over: BEAR RUN

3 MI W RATHBUN, Elk, PA

Built 1935 Load: 30.8 t ADT: 1,287

SR 1008

Fair

Over: NORTH FORK CREEK

1 MI W RATHBUN, Elk, PA

Built 1935 Load: 30.8 t ADT: 175

SR 19 WATERFORD PK

Fair

Over: OVER FRENCH CREEK TRIB

LEBOUEF TOWNSHIP, Erie, PA

Built 1952 Load: 30.8 t ADT: 2,810

SR 0021

Fair

Over: SR 0040

SOUTH UNION TOWNSHIP, Fayette, PA

Built 1971 Load: 30.8 t ADT: 8,394

SR 0119 SOUTHBOUND

Fair

Over: SR 0040

SOUTH & NORTH UNION TWP., Fayette, PA

Built 1971 Load: 30.8 t ADT: 9,550

SR 4008

Fair

Over: FOURMILE RUN

REDSTONE TOWNSHIP, Fayette, PA

Built 1942 Load: 30.8 t ADT: 1,443

SR 4040

Fair

Over: LAMB LICK RUN

WASHINGTON TOWNSHIP, Fayette, PA

Built 1941 Load: 30.8 t ADT: 142

RED DOG ROAD

Fair

Over: CHAMPION CREEK

WEST OF CHAMPION, Fayette, PA

Built 1935 Load: 30.8 t ADT: 150

FOWL HILL ROAD

Fair

Over: INDIAN CREEK

.5 MI.EAST OF MELCROFT, Fayette, PA

Built 1960 Load: 30.8 t ADT: 100

SR 3006

Fair

Over: I-81; SR 0081

1.75 ML. N. OF STATE LINE, Franklin, PA

Built 1960 Load: 30.8 t ADT: 84

Showing 3,301-3,350 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.