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

US 30

Fair

Over: SR 2019

2 MILES EAST OF BEDFORD, Bedford, PA

Built 2003 Load: 45.4 t ADT: 14,982

BLOOMINGTON AVE

Fair

Over: W BR SUSQUEHANNA RIVER

125 FT EAST OF SR 879, Clearfield, PA

Built 2005 Load: 45.4 t ADT: 1,900

FAGLEYSVILLE ROAD

Fair

Over: BRANCH SWAMP CREEK

FAGLEYSVILLE 3028A06, Montgomery, PA

Built 2005 Load: 45.4 t ADT: 1,565

T-489 COMMUNITY RD

Fair

Over: WILSON RUN

0.6 MI SOUTH OF SR 4008, Franklin, PA

Built 2005 Load: 45.4 t ADT: 200

T-608 Creamery Rd

Fair

Over: EQUINUNK CREEK

0.9 M SW of SR 4024, Wayne, PA

Built 2001 Load: 45.4 t ADT: 60

SR 3042

Fair

Over: SR 0119

0.5 MI NORTH OF SR 3093, Westmoreland, PA

Built 2007 Load: 45.4 t ADT: 2,409

PA TPK (I-576)

Fair

Over: SR 4004

ROBINSON TWP, Washington, PA

Built 2006 Load: 45.4 t ADT: 2,025

SCHOCOPEE ROAD

Fair

Over: CRAFT BROOK

MILFORD TOWNSHIP, Pike, PA

Built 2002 Load: 45.4 t ADT: 100

RIVER STONE DRIVE

Fair

Over: TRIB TO BRODHEAD CREEK

1.1 MI. SW OF WOODDALE, Monroe, PA

Built 2009 Load: 45.4 t ADT: 100

SR 1010 (LR06119)

Fair

Over: LITTLE LEHIGH CREEK

W.OF MAPLE GROVE, Berks, PA

Built 2013 Load: 45.4 t ADT: 5,235

PINE CREEK ROAD

Fair

Over: TRIB. TO PINE CREEK

BETWEEN ALBANY & ECKVILLE, Berks, PA

Built 1970 Load: 45.4 t ADT: 200

Decker Street

Fair

Over: Bigby Creek

Garrett Boro Decker St, Somerset, PA

Built 1923 Load: 45.4 t ADT: 100

SR 4001

Fair

Over: PTC B-459 MP 103.47

EAST OF LAUREL SUMMIT, Somerset, PA

Built 2012 Load: 45.4 t ADT: 569

Houk Road

Fair

Over: Big Run

0.13 mi south of SR108, Lawrence, PA

Built 1912 Load: 45.4 t ADT: 100

Drovers Lane

Fair

Over: Pine Creek

N of Lisle Rd 3363B09, Chester, PA

Built 1990 Load: 45.4 t ADT: 150

ZIEBER ROAD

Fair

Over: PIGEON CREEK

N of Kolb Rd 3139E09, Chester, PA

Built 1990 Load: 45.4 t ADT: 150

GLENVILLE ROAD

Fair

Over: RATTLESNAKE RUN

NE of Newark 39Rd 3797E3, Chester, PA

Built 1990 Load: 45.4 t ADT: 200

MEETINGHOUSE RD

Fair

Over: WEST BR. OF NAAMAN CREEK

W OF OGDEN AVE 3805-G8, Delaware, PA

Built 1974 Load: 45.4 t ADT: 6,120

Princess Run Road

Fair

Over: Princess Run

7.5 MI WEST OF PA33, Monroe, PA

Built 1936 Load: 45.4 t ADT: 100

West Jefferson Ln

Fair

Over: Bear Creek Trib

0.5 MI S OF PA895, Schuylkill, PA

Built 2010 Load: 45.4 t ADT: 25

Harwood Drive

Fair

Over: Cranberry Creek

1/2 MILE SOUTH OF RT 924, Luzerne, PA

Built 1953 Load: 45.4 t ADT: 250

EVANSBURG ROAD

Fair

Over: BRANCH OF SKIPPACK CREEK

0.1 MI SW OF SKIPPACK PK, Montgomery, PA

Built 1932 Load: 45.4 t ADT: 2,411

HIGHLAND AVENUE

Fair

Over: RAPP RUN

W OF CAMP HILL RD 3258A8, Montgomery, PA

Built 1970 Load: 45.4 t ADT: 4,700

COWPATH ROAD

Fair

Over: SKIPPACK CREEK

E OF MEADOW WOOD LANE, Montgomery, PA

Built 1970 Load: 45.4 t ADT: 10,160

MARTIN RD

Fair

Over: UMBLES RUN

EAST OF HERSHEY CHURCH RD, Lancaster, PA

Built 1999 Load: 45.4 t ADT: 100

BUCKLEY ROAD

Fair

Over: FALLBROOK CREEK

BUCKLEY ROAD OVER FALLBRO, Susquehanna, PA

Built 1980 Load: 45.4 t ADT: 50

DEER LICK ROAD

Fair

Over: DEER LICK CREEK

LOCATED NEAR PA 267, Susquehanna, PA

Built 1980 Load: 45.4 t ADT: 30

HONEY VALLEY ROAD

Fair

Over: INNERS CREEK

.25 MILES SOUTHWEST OF NE, York, PA

Built 1950 Load: 45.4 t ADT: 300

NORTH WALNUT ST

Fair

Over: MILL CREEK

150 SO. OF SPRINGWOOD RD, York, PA

Built 1965 Load: 45.4 t ADT: 2,500

ROCK LANE

Fair

Over: ROCK PARK CREEK

0.4MI E OF STATE RTE 2056, Montgomery, PA

Built 1992 Load: 45.4 t ADT: 250

Sandy Run Road

Fair

Over: Brock Creek

Lower Makefield 3151-E3, Bucks, PA

Built 1980 Load: 45.4 t ADT: 700

HENRY ROAD

Fair

Over: W. BR. PERKIOMEN CREEK

2.2 Mi E SR100 2803-K8, Montgomery, PA

Built 2020 Load: 45.7 t ADT: 30

T-455 RED ROCK RD

Fair

Over: DOE RUN

600 FT NORTH OF SR 2005, Juniata, PA

Built 1955 Load: 46.0 t ADT: 50

OLD RTE. 940

Fair

Over: UPPER TUNKHANNOCK CREEK

1 MI. NW OF PA 940, Monroe, PA

Built 1955 Load: 46.0 t ADT: 300

US 15; SR 0015

Fair

Over: PLUM RUN

S OF GETTYSBURG, Adams, PA

Built 1963 Load: 46.3 t ADT: 19,046

US 15; SR 0015

Fair

Over: BRANCH ROCK CREEK

NE OF GETTYSBURG, Adams, PA

Built 1963 Load: 46.3 t ADT: 17,119

PA 16; SR 0016

Fair

Over: MINEY BRANCH

2 MI. E. OF FOUNTAINDALE, Adams, PA

Built 1952 Load: 46.3 t ADT: 6,506

PA 116; SR 0116

Fair

Over: TRIB TO CONEWAGO CREEK

.5 MI. W. OF BRUSHTOWN, Adams, PA

Built 1949 Load: 46.3 t ADT: 8,552

HOOKSTOWN GRADE RD

Fair

Over: SR 0376 EB WB

1/2 MILE FROM INT 3160, Allegheny, PA

Built 1991 Load: 46.3 t ADT: 592

PARKWAY WEST

Fair

Over: SAW MILL RUN

750 SW FT PITT TUNNELS, Allegheny, PA

Built 1952 Load: 46.3 t ADT: 71,900

RAYMOND E WILT HW

Fair

Over: MT NEBO ROAD

350 EAST OF SR 4029, Allegheny, PA

Built 1988 Load: 46.3 t ADT: 21,528

RAYMOND E WILT HW

Fair

Over: MT NEBO RD

300 EAST OF SR 4029, Allegheny, PA

Built 1988 Load: 46.3 t ADT: 21,278

PARKWAY EAST

Fair

Over: FORWARD AVE RAMP H

@ INT W/ FORWARD AVE, Allegheny, PA

Built 1952 Load: 46.3 t ADT: 75,287

GARDEN CITY DR

Fair

Over: OVER 376 EB WB

GARDEN CITY DR.O/I376, Allegheny, PA

Built 1962 Load: 46.3 t ADT: 5,016

CROSSTOWN BLVD

Fair

Over: FIFTH AVE

I579 SB.OVER 5TH AVENUE, Allegheny, PA

Built 1962 Load: 46.3 t ADT: 27,514

WASHINGTON RD

Fair

Over: POTATO GARDEN RUN

NEAR SR 3071 INTERSECTION, Allegheny, PA

Built 1941 Load: 46.3 t ADT: 1,064

PA TPK (I-76)

Fair

Over: T-600

EAST OF BUTLER VAL INTG, Allegheny, PA

Built 1952 Load: 46.3 t ADT: 31,140

PA TPK (I-76)

Fair

Over: SR 0022 LR187

WEST OF PITTSBURGH INTG, Allegheny, PA

Built 1952 Load: 46.3 t ADT: 38,689

HODIL RD

Fair

Over: LITTLE PINE CREEK

118002 OV LITTLE PINE CRK, Allegheny, PA

Built 1960 Load: 46.3 t ADT: 600

CALIFORNIA AVENUE

Fair

Over: MCCLURE AVE ECKERT ST

052 Robert McAfee Bridge, Allegheny, PA

Built 1928 Load: 46.3 t ADT: 10,000

Showing 9,601-9,650 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.