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

PINESWAMP RD

Fair

Over: TREXLER RUN

WEST OF RINGTOWN, Schuylkill, PA

Built 1989 Load: 23.6 t ADT: 100

SR 104

Fair

Over: TRIB OF MIDDLE CREEK

1 MILE NORTH OF SHADLE, Snyder, PA

Built 1930 Load: 23.6 t ADT: 5,095

T769 E. CAMPUS AVE

Fair

Over: US 219

0.4 MILE NORTH OF TR 403, Somerset, PA

Built 1969 Load: 23.6 t ADT: 582

SR 3033

Fair

Over: TERRY CREEK

RUSH TWP .7 M N TR 706, Susquehanna, PA

Built 1974 Load: 23.6 t ADT: 61

SR 1008

Fair

Over: ELK CREEK

3 MI NE OF MANSFIELD, Tioga, PA

Built 1961 Load: 23.6 t ADT: 208

T-432

Fair

Over: TURTLE CREEK

1.7 MI SOUTH OF LINNTOWN, Union, PA

Built 1932 Load: 23.6 t ADT: 500

SR 427

Fair

Over: OVER SUGAR CREEK

JACKSON TOWNSHIP, Venango, PA

Built 1974 Load: 23.6 t ADT: 898

T-400 WILLIAMS RD.

Fair

Over: LITTLE SCRUBGRASS CREEK

SCRUBGRASS TOWNSHIP, Venango, PA

Built 1959 Load: 23.6 t ADT: 100

SR 59 KINZUA LANE

Fair

Over: OVER KINZUA CREEK

MEAD TOWNSHIP, Warren, PA

Built 1962 Load: 23.6 t ADT: 1,028

SR 3016 COOVERS CR

Fair

Over: OVER BROKENSTRAW CREEK

BROKENSTRAW TOWNSHIP, Warren, PA

Built 1963 Load: 23.6 t ADT: 99

SR 0022

Fair

Over: SR 4005

HANOVER TOWNSHIP, Washington, PA

Built 1971 Load: 23.6 t ADT: 9,245

SR 0079

Fair

Over: SR 0980

CANNONSBURG BOROUGH, Washington, PA

Built 1966 Load: 23.6 t ADT: 26,115

SR 0221

Fair

Over: TENMILE CREEK

MORRIS TOWNSHIP, Washington, PA

Built 1941 Load: 23.6 t ADT: 1,535

SR 0221

Fair

Over: BUFFALO CREEK

BLAINE TOWNSHIP, Washington, PA

Built 1946 Load: 23.6 t ADT: 211

SR 0087 TR 87

Fair

Over: SUSQ RIVR;RJ CORMAN RR

MEHOOPANY TWP JCT SR 4002, Wyoming, PA

Built 1969 Load: 23.6 t ADT: 2,851

SR 2001

Fair

Over: SOUTH RUN CREEK

MONROE TWP .3 M S SR 2002, Wyoming, PA

Built 1941 Load: 23.6 t ADT: 314

West Market Street

Fair

Over: US 30; SR 0030

2 MI. S.W. OF WEST YORK, York, PA

Built 1969 Load: 23.6 t ADT: 18,049

SR 2067

Fair

Over: BRANCH OF RAMBO RUN

2 MILE S OF CROSS ROADS, York, PA

Built 1949 Load: 23.6 t ADT: 222

CLEARVIEW RD.

Fair

Over: DAVIDSBURG RUN

0.2 MI N OF SR 4008, York, PA

Built 1949 Load: 23.6 t ADT: 700

CABIN CREEK ROAD

Fair

Over: NORTH BRANCH CABIN CREEK

.6W E.PROSPECT/N.BR.CABIN, York, PA

Built 1963 Load: 23.6 t ADT: 1,888

SR 8013 RAMP N

Fair

Over: MILL CREEK

I-83 N.-OFF RAMP-PA 462, York, PA

Built 1959 Load: 23.6 t ADT: 1,392

INTERSTATE 95

Fair

Over: SHUNK ST.TO MIFFLIN ST.

S.PHILA 3700G04, Philadelphia, PA

Built 1967 Load: 23.6 t ADT: 93,916

TORRESDALE AVENUE

Fair

Over: FRANKFORD CREEK

AT FRANKFORD AVE. 3481F10, Philadelphia, PA

Built 1916 Load: 23.6 t ADT: 10,858

HENRY AVENUE

Fair

Over: BIKE PATH WISSAHICKON

WEST VALLEY AVE. 3479 F04, Philadelphia, PA

Built 1958 Load: 23.6 t ADT: 28,301

16th Street

Fair

Over: Penn Ctr Undgrd St Sys

N of Market Street 28F12, Philadelphia, PA

Built 1957 Load: 23.6 t ADT: 17,600

53rd Street

Fair

Over: CONRAIL (Chester Br.)

S of Eastwick Ave. 36J03, Philadelphia, PA

Built 1966 Load: 23.6 t ADT: 200

ROUTE NJ 90

Fair

Over: DEL. R R.AVE CON NJ TR.

PENNSAUKEN, Beaver, PA

Built 1976 Load: 23.6 t ADT: 19,785

Mascher Street

Fair

Over: CONRAIL (Richmond Br)

N of Indiana Ave - 29A04, Philadelphia, PA

Built 1931 Load: 23.6 t ADT: 2,000

RAMP G WESTBOUND

Fair

Over: INTERSTATE 95 & ROADS

SOUTH ISLAND AVE. 3699A09, Philadelphia, PA

Built 1983 Load: 23.6 t ADT: 8,520

GROVE AVENUE

Fair

Over: SUCKER RUN

S of PA 372 3579-D5, Chester, PA

Built 1970 Load: 23.6 t ADT: 150

MIDWAY ROAD

Fair

Over: LITTLE SWATARA CREEK

BETHEL TWP LINE, Berks, PA

Built 1960 Load: 23.6 t ADT: 400

CAMP ACCESS ROAD

Fair

Over: IVES RUN

TIOGA-HAMMOND LAKES, Tioga, PA

Built 1979 Load: 23.7 t ADT: 200

U.S. ROUTE 209

Fair

Over: ADAMS CREEK

1.2 MILES NORTH OF ROUTE, Pike, PA

Built 1940 Load: 24.3 t ADT: 5,475

T-530; WOODSIDE RD

Fair

Over: US 15; SR 0015

NE OF GETTYSBURG, Adams, PA

Built 1967 Load: 24.5 t ADT: 468

PA 94; SR 0094

Fair

Over: BERMUDIAN CREEK

.5 MI SE OF YORK SPRINGS, Adams, PA

Built 1927 Load: 24.5 t ADT: 8,251

SR 1020

Fair

Over: TRIB BERMUDIAN CREEK

GARGOL, Adams, PA

Built 1953 Load: 24.5 t ADT: 1,128

BLACKHORSE TAV. RD

Fair

Over: WILLOUGHBY RUN

3 MI.SW GBRG.WILLOUGBY RN, Adams, PA

Built 1966 Load: 24.5 t ADT: 200

SCHRIVER ROAD

Fair

Over: PLUM RUN

4.5 MI.SE OF GETTYSBURG, Adams, PA

Built 1939 Load: 24.5 t ADT: 75

BULL FROG RUN ROAD

Fair

Over: MIDDLE CREEK

1.5 MI.E OF FAIRFIELD, Adams, PA

Built 1968 Load: 24.5 t ADT: 450

RT 0022 EB WB

Fair

Over: OLD STEUBENVILLE PIKE

150N.OF SR3053, Allegheny, PA

Built 1963 Load: 24.5 t ADT: 21,157

SR 28 SB

Fair

Over: DELAFIELD RD.-LEXINGTON

O/DELAFLD.RD.-LXGTN.AVE., Allegheny, PA

Built 1965 Load: 24.5 t ADT: 38,654

SR 0028 NB

Fair

Over: GAMMA DRIVE (TWP RD 505)

R.I.D.C. INTERCHANGE, Allegheny, PA

Built 1970 Load: 24.5 t ADT: 23,789

SR 0028 NB

Fair

Over: POWERS RUN ROAD SR 1009

1037 NB OVER LR 02146, Allegheny, PA

Built 1970 Load: 24.5 t ADT: 23,789

RT 0028 NB

Fair

Over: BURTNER ROAD (SR 1032)

@ INT W/ SR 1032, Allegheny, PA

Built 1972 Load: 24.5 t ADT: 15,202

SAW MILL RUN BLVD

Fair

Over: SAW MILL RUN

AT WHITED STREET, Allegheny, PA

Built 1929 Load: 24.5 t ADT: 37,206

BROADWAY BLVD

Fair

Over: PATTON STREET

0.4 MI W OF BRIDGE STREET, Allegheny, PA

Built 1960 Load: 24.5 t ADT: 10,645

LEBANON ROAD

Fair

Over: BALDWIN RD RR RAMP ST CR

1/2 MI. N.W.OF SR2045, Allegheny, PA

Built 1963 Load: 24.5 t ADT: 25,225

NOBLESTOWN RD

Fair

Over: OHIO C. SR3117 ROBINSON

1/2 MI W OF US 0079, Allegheny, PA

Built 1972 Load: 24.5 t ADT: 5,904

McKees Rocks Brg

Fair

Over: NORFOLK S RR OHIO RIVER

McKees Rocks Bridge (Main, Allegheny, PA

Built 1931 Load: 24.5 t ADT: 27,207

PANGBURN HOLLOW RD

Fair

Over: PERRY MILL RUN

PG03 PANGBURN HOLLOW #3, Allegheny, PA

Built 1978 Load: 24.5 t ADT: 715

Showing 1,251-1,300 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.