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

PRICE ROAD

Poor

Over: UNAMI CREEK

3 MI N SR 63 ADC 2918-B3, Montgomery, PA

Built 1919 Load: 32.7 t ADT: 51

WASHINGTON STREET

Poor

Over: SAW MILL RUN

1400 Ft S US-202 3367-F3, Montgomery, PA

Built 1931 Load: 32.7 t ADT: 4,000

SR 1015 (LR 165)

Poor

Over: MARTINS CREEK

@ INT. WITH T-690, Northampton, PA

Built 1920 Load: 32.7 t ADT: 1,651

SR 1016 (LR 48036)

Poor

Over: WALTZ CREEK

DELABOLE, Northampton, PA

Built 1922 Load: 32.7 t ADT: 1,099

SR 2001 (LR 48009)

Poor

Over: EAST BRANCH SAUCON CREEK

LOWER SAUCON RD.@ SR 2006, Northampton, PA

Built 1930 Load: 32.7 t ADT: 859

DOUGLASSVILLE RD.

Poor

Over: BUSHKILL CREEK

BETWEEN SR 4025 & 1001, Northampton, PA

Built 1984 Load: 32.7 t ADT: 200

PA 34; SR 0034

Poor

Over: LITTLE BUFFALO CREEK

NEWPORT BORO, Perry, PA

Built 1929 Load: 32.7 t ADT: 7,806

SHENANDOAH RD

Poor

Over: BIG BUFFALO CREEK

3 NE KISTLER/BIG BUFFALO, Perry, PA

Built 1965 Load: 32.7 t ADT: 25

SR 0006 TR 6

Poor

Over: DECKER CREEK

PALMYRA TWP 1 M E TR 507, Pike, PA

Built 1950 Load: 32.7 t ADT: 5,455

SR 0006 TR 6

Poor

Over: DELAWARE RIVER

MATAMORAS BORO @ JCT 1017, Pike, PA

Built 1939 Load: 32.7 t ADT: 16,932

PA 390 TR 390

Poor

Over: OUTLET PROMISED LAND LKE

GREENE TWP PRMSE LND LAKE, Pike, PA

Built 1947 Load: 32.7 t ADT: 1,203

SPRING BROOK ROAD

Poor

Over: RATTLESNAKE CREEK

SOUTH OF SHOHOLA FALLS, Pike, PA

Built 1916 Load: 32.7 t ADT: 110

BROAD STREET

Poor

Over: VANDERMARK CREEK

NORTH OF US 6/209, Pike, PA

Built 1867 Load: 32.7 t ADT: 50

T-322 ATKINS ROAD

Poor

Over: WEST BRANCH FISHING CR

50 FT SOUTH OF SR 4003, Potter, PA

Built 1960 Load: 32.7 t ADT: 50

US 209 (LR 162)

Poor

Over: RBM&NRR

PORT CARBON, Schuylkill, PA

Built 1922 Load: 32.7 t ADT: 3,142

SR 4033(LR 53068)

Poor

Over: LITTLE CATAWISSA CR.

ZION GROVE ROAD RINGTOWN, Schuylkill, PA

Built 1930 Load: 32.7 t ADT: 416

BOLICH RD

Poor

Over: MAHANOY CREEK

NE OF TAYLORVILLE, Schuylkill, PA

Built 1925 Load: 32.7 t ADT: 50

T-417 GERMANVILLE

Poor

Over: MAHANOY CREEK

120 FEET WEST OF SR 4007, Schuylkill, PA

Built 1924 Load: 32.7 t ADT: 175

T-475 OLD MILL RD.

Poor

Over: DEEP CREEK

T-475 OLD MILL ROAD, Schuylkill, PA

Built 1920 Load: 32.7 t ADT: 100

BROOK STREET

Poor

Over: PINE CREEK

SE OF HEGINS, Schuylkill, PA

Built 1930 Load: 32.7 t ADT: 30

STATE ROAD

Poor

Over: CODORUS CREEK

2 M. NE OF LOCUST LAKE PK, Schuylkill, PA

Built 1928 Load: 32.7 t ADT: 430

FRISBIE RD

Poor

Over: PINE CREEK

E. OF ORWIGSBURG, Schuylkill, PA

Built 1920 Load: 32.7 t ADT: 150

PA 160

Poor

Over: BUFFALO CREEK

1.5 MI.S.OF BERLIN, Somerset, PA

Built 1900 Load: 32.7 t ADT: 2,166

SR 2022

Poor

Over: BRUSH CREEK

1 MI.NW.OF JOHNSONBURG, Somerset, PA

Built 1910 Load: 32.7 t ADT: 34

SR 4021

Poor

Over: HIGGINS RUN

3 MI.NW.OF STOYSTOWN, Somerset, PA

Built 1908 Load: 32.7 t ADT: 438

T864 WHITES CRK RD

Poor

Over: WHITES CREEK

5 MI.SW.OF MT.DAVIS, Somerset, PA

Built 1916 Load: 32.7 t ADT: 25

SR 487

Poor

Over: OVER BIRCH CREEK

VILLAGE OF MILDRED, Sullivan, PA

Built 1900 Load: 32.7 t ADT: 1,349

SR 0171 TR 171

Poor

Over: LACKAWANNA RIVER

CLIFFORD TP 200N SR 2010, Susquehanna, PA

Built 1969 Load: 32.7 t ADT: 1,632

SR 1002

Poor

Over: TUNKHANNOCK CREEK

JACKSON TWP .3 M E TR 92, Susquehanna, PA

Built 1942 Load: 32.7 t ADT: 352

SR 1009

Poor

Over: STARRUCCA CREEK

HARMONY TWP 1 M W SR 1011, Susquehanna, PA

Built 1959 Load: 32.7 t ADT: 471

SR 2020

Poor

Over: OUTLET OF ACRE LAKE

LENOX TWP 0.5M S SR 106, Susquehanna, PA

Built 1968 Load: 32.7 t ADT: 565

S.R.4027

Poor

Over: OVER CUMMINGS CREEK

1.5 MILES SOUTH OF NELSON, Tioga, PA

Built 1952 Load: 32.7 t ADT: 675

SR 1004 PTRLM.CNTR

Poor

Over: OVER OIL CREEK

CORNPLANTER TOWNSHIP, Venango, PA

Built 1884 Load: 32.7 t ADT: 72

SR 1013 COBHAM PK

Poor

Over: GLADE RUN

GLADE TOWNSHIP, Warren, PA

Built 1959 Load: 32.7 t ADT: 1,042

SR 2053

Poor

Over: BRANCH OF DANIEL RUN

WEST BETHLEHEM TOWNSHIP, Washington, PA

Built 1939 Load: 32.7 t ADT: 63

FOX STOP ROAD

Poor

Over: MAPLE CREEK

NEAR TWILIGHT BORO, Washington, PA

Built 2002 Load: 32.7 t ADT: 300

COLE BRIDGE TR847

Poor

Over: HARMON CREEK

GOODWILL HUNT CLUB RD, Washington, PA

Built 1907 Load: 32.7 t ADT: 20

CAMP LANE TR986

Poor

Over: BRUSH RUN CREEK

THOMPSONVILLE ARCH, Washington, PA

Built 1920 Load: 32.7 t ADT: 350

ARENTZEN BLVD

Poor

Over: WHEELING & LAKE ERIE RR

800 NORTH OF SR 2027, Washington, PA

Built 1977 Load: 32.7 t ADT: 350

SR 0247 TR 247

Poor

Over: LACKAWANNA RIVER

CLINTON TP 288 N SUSQ LN, Wayne, PA

Built 1961 Load: 32.7 t ADT: 2,658

SR 0652 TR 652

Poor

Over: TRIB TO DELAWARE RIVER

DAMASCUS TWP 219E.SR1006, Wayne, PA

Built 1925 Load: 32.7 t ADT: 2,425

SR 4035 OXBOW ROAD

Poor

Over: EAST LACKAWANNA RIVER

PRESTON TWP 1.3M N TR 370, Wayne, PA

Built 1960 Load: 32.7 t ADT: 186

T-519 (PLANK ROAD)

Poor

Over: TRIB. TO DELAWARE RIVER

DAMASCUS TWP .5M E SR1008, Wayne, PA

Built 1957 Load: 32.7 t ADT: 80

BEAR SWAMP RD T472

Poor

Over: LACKAWAXEN RIVER

T472 0.1 Mi South of US 6, Wayne, PA

Built 1928 Load: 32.7 t ADT: 165

SR 0381

Poor

Over: LOYALHANNA CREEK

COOK TOWNSHIP, Westmoreland, PA

Built 1929 Load: 32.7 t ADT: 159

T922 MANSVILLE RD

Poor

Over: KEFFER RUN

BTW SR 2033 and SR 2008, Westmoreland, PA

Built 1981 Load: 32.7 t ADT: 50

T-775 Boyer Road

Poor

Over: Boyer Run

250 East of SR 2007, Westmoreland, PA

Built 1985 Load: 32.7 t ADT: 125

MAIN STREET

Poor

Over: NINEMILE RUN

1200 FT WEST OF SR 982, Westmoreland, PA

Built 1974 Load: 32.7 t ADT: 1,325

SR 0267 TR 267

Poor

Over: MESHOPPEN CREEK

MESHOPPEN BO 181 N TR 6, Wyoming, PA

Built 1934 Load: 32.7 t ADT: 1,610

SR 1009

Poor

Over: OXBOW CREEK

LEMON TWP 1.5 M N TR 92, Wyoming, PA

Built 1949 Load: 32.7 t ADT: 397

Showing 22,451-22,500 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.