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

SR 3008

Fair

Over: TOWANDA CREEK

VILLAGE OF FRANKLINDALE, Bradford, PA

Built 1965 Load: 34.5 t ADT: 217

SR 4018

Fair

Over: MURRY CREEK

VILLAGE OF GREENS LANDING, Bradford, PA

Built 1977 Load: 34.5 t ADT: 367

SOPERTOWN RD

Fair

Over: TRIB TO MILL CREEK

VILLAGE OF SOPER HOLLOW, Bradford, PA

Built 1951 Load: 34.5 t ADT: 192

T-889 (CO. BR.#45)

Fair

Over: TOWANDA CREEK

0.7 MI S. OF CANTON, Bradford, PA

Built 1910 Load: 34.5 t ADT: 175

NEW US-1 BY-PASS

Fair

Over: CSX;SEPTA

WOODBOURNE 37F08, Bucks, PA

Built 1966 Load: 34.5 t ADT: 46,933

NEW US-1 BY-PASS

Fair

Over: WOODBOURNE ROAD

.6MI.S.W.I-95 37F08, Bucks, PA

Built 1967 Load: 34.5 t ADT: 46,933

I-95(NB) & RAMP B

Fair

Over: STATION AVENUE

1MI.N.ANDALUSIA 45G03, Bucks, PA

Built 1964 Load: 34.5 t ADT: 39,470

SOUDERTON PIKE

Fair

Over: BR.PLEASANT SPRINGS CK.

BLOOMING GLEN 21C02, Bucks, PA

Built 1970 Load: 34.5 t ADT: 6,619

STREET ROAD

Fair

Over: CSX

.5MI.TO LR 09007 41C05, Bucks, PA

Built 1972 Load: 34.5 t ADT: 41,402

HULMEVILLE ROAD

Fair

Over: MILL CREEK / 3374-B1

.5MI.S.PENNA.TPK 42A07, Bucks, PA

Built 1979 Load: 34.5 t ADT: 13,531

MOUNTAIN VIEW DR.

Fair

Over: LAKE NOCKAMIXON(HAYCOCK)

NOCKAMIXON STATE 10B05, Bucks, PA

Built 1972 Load: 34.5 t ADT: 3,956

EASTON ROAD

Fair

Over: NESHAMINY CREEK

S.LR09049 EDISON 29B05, Bucks, PA

Built 1963 Load: 34.5 t ADT: 40,300

EASTON ROAD

Fair

Over: NORTH BR.NESHAMINY CREEK

2MI.S.PLUMSTEADVI. 22J02, Bucks, PA

Built 1939 Load: 34.5 t ADT: 17,187

BRISTOL ROAD

Fair

Over: MILL CREEK

NR.LOWER STATE RD. 28F06, Bucks, PA

Built 1987 Load: 34.5 t ADT: 12,276

EDGLEY-WOODBOURNE

Fair

Over: BLACK DITCH CREEK

1MI.N.BRISTOL RD. 43D04, Bucks, PA

Built 1953 Load: 34.5 t ADT: 7,372

ALLENTOWN ROAD

Fair

Over: LICKING CREEK

50 FT FROM LR 924 13B01, Bucks, PA

Built 1935 Load: 34.5 t ADT: 3,124

STEINSBURG ROAD

Fair

Over: LICKING CREEK

EAST OF PENNA.TPK. 06H12, Bucks, PA

Built 1946 Load: 34.5 t ADT: 1,973

Bridge Street

Fair

Over: DELAWARE RIV & NJ 29 SB

MORRISVILLE BORO. 39D04, Bucks, PA

Built 1928 Load: 34.5 t ADT: 14,200

Old Bethlehem Pike

Fair

Over: Beaver Run

.25 Mi S 9th St 2807-E2, Bucks, PA

Built 1922 Load: 34.5 t ADT: 1,800

SR0079 NB

Fair

Over: T-381 BRANDON RD

4.8 MI N OF SR 422, Butler, PA

Built 1964 Load: 34.5 t ADT: 12,834

SR0079 SOUTHBOUND

Fair

Over: T-381 BRANDON ROAD

0.9 MI S OF PA 108, Butler, PA

Built 1964 Load: 34.5 t ADT: 13,071

SR0422 EB&WB

Fair

Over: CONNOQ CR;DELWOOD RD;RR

SHEARER, Butler, PA

Built 1960 Load: 34.5 t ADT: 20,047

SR1019

Fair

Over: LITTLE BUFFALO RUN

SOUTH OF FENELTON, Butler, PA

Built 1941 Load: 34.5 t ADT: 724

SR4006

Fair

Over: FINDLAY RUN

WEST OF FIVE POINTS, Butler, PA

Built 1933 Load: 34.5 t ADT: 259

T-621 CHERRY ROAD

Fair

Over: BUFF & PITT RR

1500 W OF FAIRMONT RD, Butler, PA

Built 1987 Load: 34.5 t ADT: 150

CHURCH ROAD

Fair

Over: HOGUE RUN

0.1 MI S OF CrollsMill Rd, Butler, PA

Built 1903 Load: 34.5 t ADT: 100

US 22 EBL

Fair

Over: RR TRACE HISTORIC TRAIL

1.5 MILE WEST OF BLAIR CO, Cambria, PA

Built 1983 Load: 34.5 t ADT: 13,358

US 22 WBL

Fair

Over: RR TRACE HISTORIC TRAIL

1.5 MILE WEST OF BLAIR CO, Cambria, PA

Built 1983 Load: 34.5 t ADT: 13,672

US 219 NBL

Fair

Over: RAILS TO TRAILS

0.5 MILE SOUTH OF TR 422, Cambria, PA

Built 1975 Load: 34.5 t ADT: 5,702

US 219 SBL

Fair

Over: RAILS TO TRAILS

0.5 MILE SOUTH OF TR 422, Cambria, PA

Built 1975 Load: 34.5 t ADT: 5,230

SR 4002

Fair

Over: BR.ELK CREEK

1 MI.NE.OF BELSANO, Cambria, PA

Built 1978 Load: 34.5 t ADT: 157

T465 Old Brick Rd

Fair

Over: CHEST CREEK

.25 MI.N.BRADLEY JUNCTION, Cambria, PA

Built 1989 Load: 34.5 t ADT: 500

SR 155-PA 155

Fair

Over: SYCAMORE RUN

EMPORIUM, Cameron, PA

Built 1943 Load: 34.5 t ADT: 4,267

SR 2001

Fair

Over: SINNEMAHONING CREEK

SINNEMAHONING, Cameron, PA

Built 1938 Load: 34.5 t ADT: 383

PA 534 (LR 13018)

Fair

Over: DILLDOWN CREEK

0.5 MI.S.OF ALBRIGHTVILLE, Carbon, PA

Built 1938 Load: 34.5 t ADT: 2,317

SR 3007 (LR 13007)

Fair

Over: MAHONING CREEK

SENECA RD. NORTH OF 443, Carbon, PA

Built 1949 Load: 34.5 t ADT: 910

SUMMER MTN. RD

Fair

Over: HUNTERS CREEK

NW OF LITTLE GAP, Carbon, PA

Built 1955 Load: 34.5 t ADT: 90

SERVICE RAMPS A&B

Fair

Over: PA TPK (I-476)

HICKORY RUN S.P., Carbon, PA

Built 1957 Load: 34.5 t ADT: 2,000

SR 26-PA 26

Fair

Over: SEDA-COG/NIT&BALD EGL RR

5 MI SE BELLEFONTE, Centre, PA

Built 1973 Load: 34.5 t ADT: 6,740

SR 144-PA 144

Fair

Over: SR 144 & SR 150-ALT 220

MILESBURG, Centre, PA

Built 1968 Load: 34.5 t ADT: 7,944

SR 150-PA 150

Fair

Over: MARSH CREEK

EAGLEVILLE, Centre, PA

Built 1966 Load: 34.5 t ADT: 4,091

SR 3042

Fair

Over: LAUREL RUN

1 MI NW PORT MATILDA, Centre, PA

Built 1971 Load: 34.5 t ADT: 1,795

SR 3014-US 322 BUS

Fair

Over: SR 99 - I 99

ATHERTON ST INTERCHANGE, Centre, PA

Built 1971 Load: 34.5 t ADT: 6,324

SR 3014-US 322 BUS

Fair

Over: SLAB CABIN RUN

STATE COLLEGE, Centre, PA

Built 1932 Load: 34.5 t ADT: 25,704

COMMERCIAL ST

Fair

Over: SPRING CREEK

0.1 MILE WEST OF SR 144, Centre, PA

Built 1935 Load: 34.5 t ADT: 280

US 1 BY-PASS (NB)

Fair

Over: NEWARK ROAD

NEAR AVONDALE 46G4, Chester, PA

Built 1965 Load: 34.5 t ADT: 14,828

US 1 BY-PASS (SB)

Fair

Over: NEWARK ROAD

NEAR AVONDALE 46G4, Chester, PA

Built 1965 Load: 34.5 t ADT: 12,295

US 202

Fair

Over: VALLEY FORGE ROAD

TREDYFFRIN 24F3, Chester, PA

Built 1967 Load: 34.5 t ADT: 110,029

PAOLI PIKE

Fair

Over: BRANCH VALLEY CREEK

TREDYFFRIN TWP. 24A05, Chester, PA

Built 1948 Load: 34.5 t ADT: 21,990

WEST CHRISTIANA RD

Fair

Over: OCTORARO CREEK

KIRKS BRIDGE 50C05, Chester, PA

Built 1984 Load: 34.5 t ADT: 6,517

Showing 5,701-5,750 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.