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

RAMP M3 (WB)

Good

Over: CRUM CREEK;ACCESS ROAD

MACDAE BLVD.INTCH. 34J13, Delaware, PA

Built 1987 Load: 40.8 t ADT: 3,922

WEST HICKS RUN RD

Good

Over: EAST BRANCH HICKS RUN

AT EAST HICKS RUN ROAD, Elk, PA

Built 1997 Load: 40.8 t ADT: 10

CLAYLICK RD

Good

Over: LICKING CREEK BRANCH

1.3 MI WEST OF SR 75, Franklin, PA

Built 1997 Load: 40.8 t ADT: 100

SR 0079

Good

Over: SR 2006 & DUNKARD CREEK

PERRY TOWNSHIP, Greene, PA

Built 1973 Load: 40.8 t ADT: 10,321

SR 2005

Good

Over: THREE SPRINGS CREEK

.25 M.S.THREE SPRINGS, Huntingdon, PA

Built 1937 Load: 40.8 t ADT: 449

SR 2024

Good

Over: SIDELING HILL CREEK

4 MI.S.THREE SPRINGS BORO, Huntingdon, PA

Built 1962 Load: 40.8 t ADT: 95

T565 PINEY RIDGE R

Good

Over: CROOKED CREEK

.5 MI.E.OF SMITHFIELD, Huntingdon, PA

Built 1962 Load: 40.8 t ADT: 2,237

SR 4013

Good

Over: WARRIORS MARK RUN

HUNTINGDON FURNACE, Huntingdon, PA

Built 1999 Load: 40.8 t ADT: 449

COOPERS GAP ROAD

Good

Over: STANDING STONE CREEK

360 S OF STONE CREEK RD, Huntingdon, PA

Built 1998 Load: 40.8 t ADT: 45

PRIVATE

Good

Over: LOST CREEK

2.0 MI NE CUBA MILLS, Juniata, PA

Built 1950 Load: 40.8 t ADT: 11

EAST LICKING CR DR

Good

Over: EAST LICKING CREEK

1/2 MI SW OF SR 4002, Juniata, PA

Built 1996 Load: 40.8 t ADT: 105

SR 1035 N.Water St

Good

Over: SANTO DOMINGO CREEK

LITITZ BORO - WATER ST., Lancaster, PA

Built 1995 Load: 40.8 t ADT: 1,013

SR 4010 MT.PLEASAN

Good

Over: LITTLE CHIQUES CREEK

1.5 MI.N.E. OF FLORIN, Lancaster, PA

Built 1990 Load: 40.8 t ADT: 141

SR 4030 Newport rd

Good

Over: BEHM RUN

1 MI. E. OF ELSTONVILLE, Lancaster, PA

Built 1984 Load: 40.8 t ADT: 983

T-479 HERR ROAD

Good

Over: TRIB OF PEQUEA CREEK

.6 MILES EAST OF SR 896, Lancaster, PA

Built 1991 Load: 40.8 t ADT: 250

SR 0309 X VALLEY

Good

Over: SR 2020 SCOTT ST

W.BARRE CITY OVER SR 2020, Luzerne, PA

Built 1991 Load: 40.8 t ADT: 56,156

SR 2022 MAIN ST

Good

Over: MILL CREEK

PLAINS TWP .5 M N SR 2009, Luzerne, PA

Built 1990 Load: 40.8 t ADT: 4,687

SR 4001

Good

Over: BRANCH HUNLOCK CREEK

PLYMOUTH TP 2.6M N SR4016, Luzerne, PA

Built 1930 Load: 40.8 t ADT: 189

SR 2014

Good

Over: MUNCY CREEK

1 MI N OF MUNCY BORO., Lycoming, PA

Built 1979 Load: 40.8 t ADT: 10,093

US 15 NBL

Good

Over: OVER T-395 COLVIN ROAD

3 MI. N. OF WILLIAMSPORT, Lycoming, PA

Built 1990 Load: 40.8 t ADT: 8,045

US 15 SBL

Good

Over: OVER COLVIN ROAD

3 MI. N. OF WILLIAMSPORT, Lycoming, PA

Built 1990 Load: 40.8 t ADT: 8,834

US 15 NB

Good

Over: HOAGLAND RUN

SOUTH OF PA 973, Lycoming, PA

Built 1993 Load: 40.8 t ADT: 8,196

SR 1011

Good

Over: INDIAN CREEK

1 MI NW ELDRED, McKean, PA

Built 1986 Load: 40.8 t ADT: 1,916

SR 62 MAIN STREET

Good

Over: OVER SANDY CREEK

SANDY LAKE BOROUGH, Mercer, PA

Built 1991 Load: 40.8 t ADT: 1,469

SR 80 EB

Good

Over: OVER SR 18 NEW CASTLE RD

SHENANGO TOWNSHIP, Mercer, PA

Built 1993 Load: 40.8 t ADT: 13,514

SR 80 WB

Good

Over: OVER SR 18 NEW CASTLE RD

SHENANGO TOWNSHIP, Mercer, PA

Built 1994 Load: 40.8 t ADT: 13,487

SR 846 RIVER ROAD

Good

Over: OVER MCCULLOUGH RUN

CITY OF HERMITAGE, Mercer, PA

Built 1997 Load: 40.8 t ADT: 1,822

BRIDGE 612 T-884

Good

Over: OVER NORTH DEER CREEK

NORTH RD. FRENCH CREEK, Mercer, PA

Built 1987 Load: 40.8 t ADT: 52

BRIDGE 1915 T-549

Good

Over: OVER MAGARGEE RUN

CLAY FURNACE JEFFERSON, Mercer, PA

Built 1973 Load: 40.8 t ADT: 85

BRIDGE 1003 T-668

Good

Over: OVER LITTLE SHENANGO R.

PIERSON RD PERRY TOWNSHIP, Mercer, PA

Built 1992 Load: 40.8 t ADT: 141

VALLEY FORGE ROAD

Good

Over: ABRAMS RUN / 3366-J4

2MI.TO HENDENSON 3366-J04, Montgomery, PA

Built 1983 Load: 40.8 t ADT: 6,392

BELMONT AVENUE

Good

Over: CYNWYD HERITAGE TRAIL

BALA CYNWYD 3479D8, Montgomery, PA

Built 1990 Load: 40.8 t ADT: 16,518

SR 2003

Good

Over: OVER LOGAN RUN

4 MI S OF RIVERSIDE BORO, Northumberland, PA

Built 1934 Load: 40.8 t ADT: 114

OLD SR 2035/30/0

Good

Over: OVER SHAMOKIN CREEK

1.5 M S OF STRONG, Northumberland, PA

Built 1993 Load: 40.8 t ADT: 4,926

Clark Road

Good

Over: LICK RUN

SNYDERTOWN BORO, Northumberland, PA

Built 1988 Load: 40.8 t ADT: 290

GAMBERS CORNER RD

Good

Over: LITTLE JUNIATA CREEK

1 NW DUNCANNON/L.JUNIATA, Perry, PA

Built 1985 Load: 40.8 t ADT: 225

SR 0507 TR 507

Good

Over: E BR WALLENPAUPACK CREEK

GREENE TWP @ JCT SR 3006, Pike, PA

Built 1958 Load: 40.8 t ADT: 3,724

BIG HOLLOW ROAD

Good

Over: MILL CREEK

1000 S OF MILL CREEK RD, Sullivan, PA

Built 1999 Load: 40.8 t ADT: 10

US SR 15

Good

Over: OVER TIOGA RIVER

LAWRENCEVILLE-TIOGA RIVER, Tioga, PA

Built 1994 Load: 40.8 t ADT: 3,225

SR 4039

Good

Over: OVER HILLS CREEK

3 MI NE OF MIDDLEBURY CTR, Tioga, PA

Built 1993 Load: 40.8 t ADT: 408

T-586 CTY BR 16

Good

Over: CROOKED CREEK

0.1 MI. SE MIDDLEBURY CTR, Tioga, PA

Built 1980 Load: 40.8 t ADT: 200

LEFT ASAPH ROAD

Good

Over: ASAPH RUN

RIGHT ASAPH RD INTERSECT., Tioga, PA

Built 2000 Load: 40.8 t ADT: 35

ASAPH ROAD

Good

Over: ASAPH RUN

2.5 MI NW OF ASAPH/US 6, Tioga, PA

Built 1998 Load: 40.8 t ADT: 35

WEIKERT RUN ROAD

Good

Over: WEIKERT RUN

2 MI W OF WEIKERT RD, Union, PA

Built 1997 Load: 40.8 t ADT: 30

PINE CRK HOLLOW RD

Good

Over: RAPID RUN

NEAR SR 192, Union, PA

Built 2005 Load: 40.8 t ADT: 20

WHITE DEER CRK RD

Good

Over: WHITE DEER CREEK

.5 MI W OF RUNNING GAP RD, Union, PA

Built 1998 Load: 40.8 t ADT: 25

SR 8

Good

Over: OVER CHERRYTREE RUN

CORNPLANTER TOWNSHIP, Venango, PA

Built 1992 Load: 40.8 t ADT: 1,876

SR 427

Good

Over: OVER SUGAR CREEK

PLUM TOWNSHIP, Venango, PA

Built 1995 Load: 40.8 t ADT: 398

SR 6 GRAND ARMY HY

Good

Over: OVER PAGE HOLLOW RUN

PITTSFIELD TOWNSHIP, Warren, PA

Built 1995 Load: 40.8 t ADT: 3,275

SR 27

Good

Over: OVER GARLAND RUN

PITTSFIELD TOWNSHIP, Warren, PA

Built 1991 Load: 40.8 t ADT: 1,478

Showing 16,551-16,600 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.