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 283; SR 0300

Good

Over: Turnpike Industrial Dr.

1 mi. North of Highspire, Dauphin, PA

Built 1971 Load: 33.6 t ADT: 54,058

SR 6 GRAND ARMY HY

Good

Over: OVER SLAUGHTER RUN

CONCORD TOWNSHIP, Erie, PA

Built 1989 Load: 33.6 t ADT: 6,857

SR 0079

Good

Over: TWP. ROAD 389 & BELL RUN

PERRY TOWNSHIP, Greene, PA

Built 1973 Load: 33.6 t ADT: 10,151

T-415 THOS CVRD BR

Good

Over: CROOKED CREEK

BTW T408 & SR4002, Indiana, PA

Built 1997 Load: 33.6 t ADT: 50

Long Road

Good

Over: Muddy Run

400 E of T-563 / T-566, Indiana, PA

Built 1940 Load: 33.6 t ADT: 75

PA 741;SR 0741

Good

Over: SWARR RUN

0.25 MI.N. OF L.R. 36184, Lancaster, PA

Built 1969 Load: 33.6 t ADT: 15,336

PA TPK (I-76)

Good

Over: T-884

BRECKNOCK TWP, Lancaster, PA

Built 1949 Load: 33.6 t ADT: 33,608

SR 0376 WB

Good

Over: TWP 593 NASHUA ROAD

1.0 MI N OF MITCHELL ROAD, Lawrence, PA

Built 1973 Load: 33.6 t ADT: 6,361

PA309 (LR153)

Good

Over: SAUCON CREEK

0.1 MI.N.OF SR 2028, Lehigh, PA

Built 1970 Load: 33.6 t ADT: 34,060

RAMP LD-SR 8005

Good

Over: NORFOLK SOUTHERN RR

RAMP LD EXIT 57(18A), Lehigh, PA

Built 1989 Load: 33.6 t ADT: 4,236

SR8047 RAMP J EX 2

Good

Over: LUZ CO RAIL AUTHORITY

WB CTY RAMP J EXIT 2, Luzerne, PA

Built 1991 Load: 33.6 t ADT: 4,310

I - 180 EB

Good

Over: SR 2029 (FAXON)

.5MI E WLLMSPRT CITY LINE, Lycoming, PA

Built 1982 Load: 33.6 t ADT: 15,435

SR-0180 WBL

Good

Over: OVER SR2014 EAST 3RD ST.

.5MI WEST MONTOURSVILLE, Lycoming, PA

Built 1982 Load: 33.6 t ADT: 15,035

SR 0015 SBL

Good

Over: SB OVER HOAGLAND RUN

SOUTH OF SR 973, Lycoming, PA

Built 1993 Load: 33.6 t ADT: 9,450

SR 80 WB

Good

Over: OVER SR 173 GROVE CITY

WOLF CREEK TOWNSHIP, Mercer, PA

Built 1965 Load: 33.6 t ADT: 8,040

BRIDGE 2115 T-732

Good

Over: OVER YELLOW CREEK

S.COTTAGE RD JACKSON TWP, Mercer, PA

Built 1981 Load: 33.6 t ADT: 228

CEDAR ROAD

Good

Over: JENKINTOWN CREEK/3371C08

.8MI.NORTH RT.73, Montgomery, PA

Built 1989 Load: 33.6 t ADT: 8,026

PENNSYLVANIA AVE.

Good

Over: SEPTA BETHLEHEM BRANCH

1.2 Mi NW US202 3144-F7, Montgomery, PA

Built 2003 Load: 33.6 t ADT: 350

SR 4008

Good

Over: CO LIN BR CHILLISQUAQ CR

3 MI S OF TURBOTVILLE, Montour, PA

Built 1972 Load: 33.6 t ADT: 194

PA 248 (LR 175)

Good

Over: BR. MONOCACY CR.

NEAR JCT.PA946, Northampton, PA

Built 1963 Load: 33.6 t ADT: 8,968

EVERGREEN ROAD

Good

Over: EAST BR. BERTSCH CREEK

AT PA 248 & SR 4020, Northampton, PA

Built 1964 Load: 33.6 t ADT: 350

SR 4019

Good

Over: HORSE RUN

1 MI N SHINGLEHOUSE, Potter, PA

Built 1973 Load: 33.6 t ADT: 484

PA 443/895-LR53012

Good

Over: TRIB. LITTLE SCHUYLKILL

0.15 MI.W.OF NEW RINGGOLD, Schuylkill, PA

Built 1964 Load: 33.6 t ADT: 6,830

US TR 11 & 15 SBL

Good

Over: OVER SR 35

1 MI S OF SELINSGROVE, Snyder, PA

Built 1976 Load: 33.6 t ADT: 10,102

Silver C. Hollow R

Good

Over: SILVER CREEK

1 MI NW OF PORT TREVORTON, Snyder, PA

Built 1985 Load: 33.6 t ADT: 163

SR 3025

Good

Over: E.BR.OF COXES CREEK

.75 MI.S.OF SOMERSET, Somerset, PA

Built 1963 Load: 33.6 t ADT: 1,354

SR 4027 Cum Crk Rd

Good

Over: OVER CUMMINGS CREEK

2.5 MI NE OF ELBRIDGE, Tioga, PA

Built 1979 Load: 33.6 t ADT: 675

SR 2004

Good

Over: TURTLE CREEK

4 MI. EAST OF MIFFLINBURG, Union, PA

Built 1983 Load: 33.6 t ADT: 1,220

SR 0119

Good

Over: BRANCH OF JACKS RUN

YOUNGWOOD BOROUGH, Westmoreland, PA

Built 1951 Load: 33.6 t ADT: 24,220

SR 3005

Good

Over: SPEERS RUN

ROSTRAVER TOWNSHIP, Westmoreland, PA

Built 1968 Load: 33.6 t ADT: 303

22nd Street

Good

Over: Pump House

S of B Frank.Pkwy3590-B07, Philadelphia, PA

Built 1958 Load: 33.6 t ADT: 12,400

Highland &Seminole

Good

Over: SEPTA (Chestnut Hill W.)

Highland/Seminole 16J03, Philadelphia, PA

Built 1916 Load: 33.6 t ADT: 5,600

BOWER STREET

Good

Over: BLACK HOLE CREEK

MONTGOMERY BORO, Lycoming, PA

Built 2000 Load: 33.6 t ADT: 220

SR 4010

Good

Over: OVER JEMASON CREEK

6 MILE SE OF WESTFIELD, Tioga, PA

Built 2001 Load: 33.6 t ADT: 85

SR 8014

Good

Over: TR. KISHACOQUILLAS CREEK

0.5 MI WEST OF LEWISTOWN, Mifflin, PA

Built 2002 Load: 33.6 t ADT: 2,907

PA TPK (TOLL 43)

Good

Over: PETERS CR RD SR0051

RAMP X OVER SR 0051, Allegheny, PA

Built 2002 Load: 33.6 t ADT: 3,617

VALLEY ACRES RD.

Good

Over: KRUETZ CREEK

.3S HALLAM BORO/KREUTZ CR, York, PA

Built 2003 Load: 33.6 t ADT: 1,389

SR 1001

Good

Over: BILLINGS MILL CREEK

TNKHANNCK TWP. .5M N TR6, Wyoming, PA

Built 2006 Load: 33.6 t ADT: 892

SR 219 US 219

Good

Over: CLARION RIVER/ B & P RR

JOHNSONBURG, Elk, PA

Built 2007 Load: 33.6 t ADT: 7,146

GULPH ROAD

Good

Over: TROUT CREEK

E VALLEY FORGE PK 3366C6, Chester, PA

Built 2008 Load: 33.6 t ADT: 3,809

Brownsville Rd Ext

Good

Over: Piney Fork

South Park, Allegheny, PA

Built 2008 Load: 33.6 t ADT: 5,069

SR 0555

Good

Over: DRIFTWOOD BRANCH

DRIFTWOOD BORO, Cameron, PA

Built 2009 Load: 33.6 t ADT: 453

BEAVER STREET

Good

Over: BEAVER RUN

100 S OF SR 29, Wyoming, PA

Built 2009 Load: 33.6 t ADT: 10

NEW GALENA ROAD

Good

Over: TRIB NO. BR.NESHAMINY CR

LIMEKILN PIKE 3033F01, Bucks, PA

Built 2009 Load: 33.6 t ADT: 1,128

CEDAR HOLLOW ROAD

Good

Over: US 202

1.4 MI N OF PA 29 23F6, Chester, PA

Built 2009 Load: 33.6 t ADT: 3,376

WEST LAW ROAD

Good

Over: TWELVEMILE CREEK

1500 FT NE OF SR 1013, Erie, PA

Built 2008 Load: 33.6 t ADT: 239

National Pike T-55

Good

Over: PA TPK (TOLL 43)

West of Exit M22, Fayette, PA

Built 2009 Load: 33.6 t ADT: 1,555

T-603 SHALE RD

Good

Over: NORTH BRANCH CHERRY RUN

340 FT W OF SR 2020, Armstrong, PA

Built 1970 Load: 33.6 t ADT: 100

SR 4007 (LR39058)

Good

Over: JORDAN CREEK

SCHLICHERS BRIDGE, Lehigh, PA

Built 2014 Load: 33.6 t ADT: 739

T-744 HANKS ROAD

Good

Over: WOODCOCK CREEK

1 MILE NE OF GUYS MILLS, Crawford, PA

Built 2015 Load: 33.6 t ADT: 50

Showing 13,501-13,550 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.