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

BETHLEHEM PK

Fair

Over: PA 309 BYPASS 2920B10

3.5MI.S.SELLERSVIL.20F11, Bucks, PA

Built 1967 Load: 22.7 t ADT: 10,322

CUTTALOSSA ROAD

Fair

Over: CUTTALOSSA CREEK

SOLEBURY TOWNSHIP 18G09, Bucks, PA

Built 1932 Load: 22.7 t ADT: 50

SR 0422

Fair

Over: SR 4005

SOUTH OF LAKE ARTHUR, Butler, PA

Built 1969 Load: 22.7 t ADT: 13,860

T-397 HUTCHMAN RD

Fair

Over: BREAKNECK CREEK

200 FT EAST of SR 3015, Butler, PA

Built 1987 Load: 22.7 t ADT: 790

CENTER STREET

Fair

Over: BREAKNECK CREEK

0.2 MI SW OF SR 3015 INT, Butler, PA

Built 1988 Load: 22.7 t ADT: 685

SR 2019

Fair

Over: US 22

1.3 MILE SOUTH OF SR 2014, Cambria, PA

Built 1983 Load: 22.7 t ADT: 680

I-80 EB(LR1009)

Fair

Over: N.E.EXT. PA. TPK(I-476)

I-80 E.B. OVER I-476, Carbon, PA

Built 1965 Load: 22.7 t ADT: 8,087

SR 99 - I 99

Fair

Over: SR 550-PA 550

BELLEFONTE, Centre, PA

Built 1972 Load: 22.7 t ADT: 8,478

PUSEY MILL RD(T337

Fair

Over: US 1 BY-PASS

1MI.SOUTH PA 796 44J7, Chester, PA

Built 1967 Load: 22.7 t ADT: 848

GLEN WILLOW ROAD

Fair

Over: US 1 BY-PASS

.9MI.NORTH PA 41 46D04, Chester, PA

Built 1965 Load: 22.7 t ADT: 335

UWCHLAN AVENUE

Fair

Over: US-30 BYPASS

ROUTE 113 INTER. 20H12, Chester, PA

Built 1961 Load: 22.7 t ADT: 18,791

STRASBURG ROAD

Fair

Over: BROAD RUN

EMBREEVILLE STATE 30G12, Chester, PA

Built 1959 Load: 22.7 t ADT: 6,510

LITTLE ELK CRK RD

Fair

Over: LITTLE ELK CREEK

E NOTTINGHAM TWP 3907-K8, Chester, PA

Built 1919 Load: 22.7 t ADT: 524

HILLENDALE RD;T337

Fair

Over: WEST BR RED CLAY CREEK

1.5 Mi W of PA-82 3801-E8, Chester, PA

Built 1932 Load: 22.7 t ADT: 1,920

T-462 SLED ROAD

Fair

Over: FIDDLERS RUN

0.9 mi NW int w/ SR 861, Clarion, PA

Built 1960 Load: 22.7 t ADT: 50

SR 1009

Fair

Over: SR 80-I 80

3 MI W EXIT 133, Clearfield, PA

Built 1967 Load: 22.7 t ADT: 1,139

SR 477-PA 477

Fair

Over: LONG RUN

ROTE, Clinton, PA

Built 1937 Load: 22.7 t ADT: 2,519

SR 1020

Fair

Over: FISHING CREEK

VILLAGE OF FORKS, Columbia, PA

Built 1955 Load: 22.7 t ADT: 625

SR 6 SMOCK BRIDGE

Fair

Over: OVER WNYP/PARK AVE/RD/CK

WEST MEAD TOWNSHIP, Crawford, PA

Built 1953 Load: 22.7 t ADT: 17,379

SR 79 SB

Fair

Over: OVER SR 4011 MOSIERTOWN

CUSSEWAGO TOWNSHIP, Crawford, PA

Built 1968 Load: 22.7 t ADT: 7,030

SR 285 GENEVA ROAD

Fair

Over: OVER SR 79 NB/SB

GREENWOOD TOWNSHIP, Crawford, PA

Built 1969 Load: 22.7 t ADT: 2,072

SR 285 TOWNHOUSE R

Fair

Over: OVER TOWN HOUSE RUN

FAIRFIELD TOWNSHIP, Crawford, PA

Built 1937 Load: 22.7 t ADT: 1,889

SR 1024 Cana. Lake

Fair

Over: OVER BRITTON RUN

SPARTA TOWNSHIP, Crawford, PA

Built 1977 Load: 22.7 t ADT: 701

T-599 FINNEY ROAD

Fair

Over: OVER THOMPSON CREEK

1.25 MI. E. OF HYDETOWN, Crawford, PA

Built 1930 Load: 22.7 t ADT: 250

DAM ROAD

Fair

Over: PYMATUNING DAM OVERFLOW

PYMATUNING STATE PARK, Crawford, PA

Built 1932 Load: 22.7 t ADT: 280

WEST RIDGE STREET

Fair

Over: I-81; SR 0081

W.RIDGE ST.(CARLISLE), Cumberland, PA

Built 1962 Load: 22.7 t ADT: 2,299

PA 533; Shippensb

Fair

Over: CVRT

1 MI.W. OF NEWVILLE, Cumberland, PA

Built 1969 Load: 22.7 t ADT: 1,170

1007 Locust Point

Fair

Over: I-81; SR 0081

0.8 MI N OF TWP RD 874, Cumberland, PA

Built 1969 Load: 22.7 t ADT: 1,201

SR 1009

Fair

Over: I-81; SR 0081

1.3 MI.E. OF SR 1007, Cumberland, PA

Built 1969 Load: 22.7 t ADT: 2,335

GOOD HOPE RD

Fair

Over: CONODOGUINET CREEK

MECHANICSBURG, Cumberland, PA

Built 1961 Load: 22.7 t ADT: 4,713

SR 4025 OLD MILL R

Fair

Over: CONODOGUINET CREEK

GREIDER, Cumberland, PA

Built 1961 Load: 22.7 t ADT: 156

I-81; SR 0081

Fair

Over: SR 3009;SUSQ RIV; NSRCRR

HARRISBURG (WADE BR), Dauphin, PA

Built 1973 Load: 22.7 t ADT: 53,555

SR 2001 HILLSDALE

Fair

Over: CONEWAGO CREEK

4 MI. S.E. OF ROYALTON, Dauphin, PA

Built 1970 Load: 22.7 t ADT: 316

SR 2003

Fair

Over: T496 SWATARA CR RAILROAD

1.5 MI. N.E. MIDDLETOWN, Dauphin, PA

Built 1972 Load: 22.7 t ADT: 10,323

63RD STREET

Fair

Over: NORFOLK SOUTHERN

OFF DERRY ST/RUTHFRD YARD, Dauphin, PA

Built 1985 Load: 22.7 t ADT: 4,000

INTERSTATE 95

Fair

Over: KERLIN STREET

CITY OF CHESTER 43E04, Delaware, PA

Built 1964 Load: 22.7 t ADT: 109,139

MID-COUNTY EXWY.SB

Fair

Over: DARBY ROAD

HAVERFORD TWP. 25J04, Delaware, PA

Built 1967 Load: 22.7 t ADT: 43,234

MEDIA STATION ROAD

Fair

Over: RIDLEY CREEK

1.2 Mi E SR352 ADC 3696F4, Delaware, PA

Built 1961 Load: 22.7 t ADT: 1,600

ON TSR 301

Fair

Over: WYNCOOP RUN

BELLTOWN, Elk, PA

Built 1894 Load: 22.7 t ADT: 191

SR 97 UNION CITY

Fair

Over: OVER LEBOEUF CREEK

SUMMIT TOWNSHIP, Erie, PA

Built 1929 Load: 22.7 t ADT: 5,564

SR 430 STATION RD

Fair

Over: OVER FOUR MILE CREEK

HARBOR CREEK TOWNSHIP, Erie, PA

Built 1941 Load: 22.7 t ADT: 5,110

SR 2003 MAIN ST.

Fair

Over: OVER FRENCH CREEK BRANCH

MILL VILLAGE BOROUGH, Erie, PA

Built 1951 Load: 22.7 t ADT: 2,264

SR 2022 TURNPIKE R

Fair

Over: OVER BASKIN RUN

WAYNE TOWNSHIP, Erie, PA

Built 1959 Load: 22.7 t ADT: 332

T-401 GAGE ROAD

Fair

Over: E BR CONNEAUT CREEK

600 W OF BESSEMER RD, Erie, PA

Built 1986 Load: 22.7 t ADT: 332

PLAYFORD AVE

Fair

Over: SR 0040

BROWNSVILLE BOROUGH, Fayette, PA

Built 1969 Load: 22.7 t ADT: 169

SR 1053

Fair

Over: OPOSSUM RUN

DUNBAR TOWNSHIP, Fayette, PA

Built 1939 Load: 22.7 t ADT: 663

SR 4026

Fair

Over: REDSTONE CREEK

REDSTONE TOWNSHIP, Fayette, PA

Built 1937 Load: 22.7 t ADT: 254

T-373

Fair

Over: YORK RUN

0.8 MI NW OF SR 0119, Fayette, PA

Built 1966 Load: 22.7 t ADT: 28

SR 2011

Fair

Over: WHITELEY CREEK

GREENE TOWNSHIP, Greene, PA

Built 1954 Load: 22.7 t ADT: 894

BUTTERNUT HOLLOW

Fair

Over: SOUTH FORK TENMILE CREEK

EAST OF RUTAN VILLAGE, Greene, PA

Built 1919 Load: 22.7 t ADT: 20

Showing 1,001-1,050 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.