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

MOUNTAIN ROAD

Fair

Over: MILL RUN

SPRINGFIELD TOWNSHIP, Fayette, PA

Built 1985 Load: 48.1 t ADT: 25

Greenlick Hollow R

Fair

Over: Green Lick Run

SE of Hammondville, Fayette, PA

Built 1980 Load: 48.1 t ADT: 200

WYNN COURT

Fair

Over: TRIB OF WHITE CLAY CREEK

N OF GLEN RD 4022D01, Chester, PA

Built 2012 Load: 48.1 t ADT: 99

Bridgewater Drive

Fair

Over: E Br of Chester Creek

W Phoenixvill Pk 3473 E10, Chester, PA

Built 1990 Load: 48.1 t ADT: 200

LITTLE EVENDALE RD

Fair

Over: COCOLAMUS CREEK

300 FT S OF SR 35, Juniata, PA

Built 1919 Load: 48.1 t ADT: 100

SR 78(LR 285 SP)

Fair

Over: MILL CREEK

1 MI.W.OF LEHIGH CO.LINE, Berks, PA

Built 1958 Load: 48.6 t ADT: 35,420

PA 116; SR 0116

Fair

Over: MINEY RUN

4 MI.S.OF FAIRFIELD, Adams, PA

Built 1986 Load: 49.0 t ADT: 4,076

BATEMAN ROAD

Fair

Over: BERMUDIAN CREEK

.6 N SGL#249/BURMUDIAN CR, Adams, PA

Built 1955 Load: 49.0 t ADT: 75

RAYMOND E WILT HW

Fair

Over: SR 4014 GASS RD

OVER LR 02089, Allegheny, PA

Built 1988 Load: 49.0 t ADT: 27,073

SMITHFIELD ST

Fair

Over: STATION SQUARE ACCESS RD

Smithfield St Bridge, Allegheny, PA

Built 1995 Load: 49.0 t ADT: 6,901

PA TPK (I-76)

Fair

Over: TURTLE CREEK

NEAR ALLEGH-WESTMLD CO LN, Allegheny, PA

Built 1952 Load: 49.0 t ADT: 46,261

SHADELAND AVENUE

Fair

Over: WOODS RUN RD LECKY WAY

095 SHADELAND AVE BRIDGE, Allegheny, PA

Built 1993 Load: 49.0 t ADT: 3,000

RAMP C RD

Fair

Over: TRAFFIC ROUTE 28 N.B.

RP.FROM HIGH.PRK.TO 28 SB, Allegheny, PA

Built 1960 Load: 49.0 t ADT: 11,331

RAMP K BIGELOW BL

Fair

Over: RAMP B BIGELOW BLVD

SR579 NB TO BIGELOW BLVD, Allegheny, PA

Built 1986 Load: 49.0 t ADT: 5,279

RAMP M

Fair

Over: 10TH ST AT 2ND AVE

AT ARMSTRONG TUNNEL, Allegheny, PA

Built 1956 Load: 49.0 t ADT: 1,740

SR1040

Fair

Over: S JEFFERSON / BIKE TRAIL

EAST OF KITTANNING, Armstrong, PA

Built 1937 Load: 49.0 t ADT: 11,831

SR2026

Fair

Over: CROOKED CREEK

NEAR BRICK CHURCH, Armstrong, PA

Built 1994 Load: 49.0 t ADT: 165

T-750 WALKER FLAT

Fair

Over: REDBANK CREEK

475 SE of SR-28, Armstrong, PA

Built 1992 Load: 49.0 t ADT: 200

CONSTITUTION BL

Fair

Over: DILWORTH RUN

@ INTER.W/E.PALESTINE RD., Beaver, PA

Built 1952 Load: 49.0 t ADT: 9,067

PA TPK RAMP O

Fair

Over: PA TPK (I-76)

BIG BEAVER BOROUGH, Beaver, PA

Built 1992 Load: 49.0 t ADT: 1,000

PA TPK (I-376)

Fair

Over: PA TPK (I-376)

BIG BEAVER BOROUGH, Beaver, PA

Built 1992 Load: 49.0 t ADT: 9,871

PA 913

Fair

Over: RAYSTOWN BR.JUNIATA RIV.

0.2 MILE EAST OF TR 26, Bedford, PA

Built 1990 Load: 49.0 t ADT: 4,142

SR 2007

Fair

Over: T WB SIDELING HILL CREEK

PURCELL, Bedford, PA

Built 1938 Load: 49.0 t ADT: 257

PA 96 (LR 356)

Fair

Over: PA TURNPIKE (I-76);B-493

2 MI NW OF MANNS CHOICE, Bedford, PA

Built 1995 Load: 49.0 t ADT: 705

PA TPK (I-76)

Fair

Over: SHAWNEE CREEK; B-313

NEAR SHAWNEE STATE PARK, Bedford, PA

Built 1939 Load: 49.0 t ADT: 30,600

US 222 SB(LR 157)

Fair

Over: SR 8015(RAMP G)

NORTH END OF BY-PASS, Berks, PA

Built 1972 Load: 49.0 t ADT: 10,298

PA 562 (LR 284)

Fair

Over: IRONSTONE CREEK

S.READING AVE.@ WATER ST., Berks, PA

Built 1965 Load: 49.0 t ADT: 9,347

SR 1023 (LR 06055)

Fair

Over: PINE CREEK

VILLAGE OF LOBACHSVILLE, Berks, PA

Built 1970 Load: 49.0 t ADT: 619

PA TPK (Ramp)

Fair

Over: PA TPK (I-76)

MORGANTOWN INTERCHANGE, Berks, PA

Built 1990 Load: 49.0 t ADT: 9,566

MECKVILLE RD

Fair

Over: TRIBUTARY OF CROSSKILL

W.OF SR 645 N.OF SR 4002, Berks, PA

Built 1977 Load: 49.0 t ADT: 224

SR 1001

Fair

Over: BEAVRDM.BR.JUNIATA RIVER

1 MI.E.OF DUNCANSVILLE, Blair, PA

Built 1992 Load: 49.0 t ADT: 16,081

T503 River Road

Fair

Over: TIPTON RUN

1/10 MI W OF SR1001, Blair, PA

Built 1984 Load: 49.0 t ADT: 188

T444 Flowing Sprg

Fair

Over: SIDE CHAN FRANK BR JUN R

Flowing Spring, Blair, PA

Built 2001 Load: 49.0 t ADT: 31

S.R. 706

Fair

Over: OVER ROCKWELL CREEK

STEVENS TWP .1M W, Bradford, PA

Built 1994 Load: 49.0 t ADT: 2,142

SR 2010

Fair

Over: SUSQUEHANNA RIVER

WYALUSING RIVER BRIDGE, Bradford, PA

Built 1942 Load: 49.0 t ADT: 5,148

RIVER ROAD

Fair

Over: TINICUM CREEK

TINICUM TOWNSHIP 11K06, Bucks, PA

Built 1932 Load: 49.0 t ADT: 2,608

INTERSTATE 95 (SB)

Fair

Over: BRISTOL PIKE

1MI.N.EDDINGTON 42B12, Bucks, PA

Built 1964 Load: 49.0 t ADT: 41,939

CARVER-WISMER ROAD

Fair

Over: PAUNNACUSSING CREEK

CARVERSVILLE 18A11/2811K9, Bucks, PA

Built 1854 Load: 49.0 t ADT: 2,061

OXFORD VALLEY ROAD

Fair

Over: CSX & NSRC

2MI.N.LANGHORNE 37K08, Bucks, PA

Built 1969 Load: 49.0 t ADT: 37,188

MAIN STREET

Fair

Over: SEPTA (BETHLEHEM BRANCH)

SELLERSVILLE BORO. 20E02, Bucks, PA

Built 1927 Load: 49.0 t ADT: 8,197

LOWER MOUNTAIN RD.

Fair

Over: MILL CREEK

FORESTVILLE BRIDGE 30C01, Bucks, PA

Built 1983 Load: 49.0 t ADT: 600

T-431 WHITESTOWN

Fair

Over: SEMICONON RUN

BTW SR0528 & SR3029, Butler, PA

Built 1970 Load: 49.0 t ADT: 200

T-565 GOLDEN CITY

Fair

Over: DAVIS RUN

BTW SR 2012 & T554, Butler, PA

Built 1912 Load: 49.0 t ADT: 500

PA 56

Fair

Over: STONY CREEK RIVER

0.4 MILE WEST OF TR 403 S, Cambria, PA

Built 1967 Load: 49.0 t ADT: 18,126

INDUSTRIAL PARK RD

Fair

Over: NESQUEHONING CREEK

1600 FT WEST PARK AVENUE, Carbon, PA

Built 1920 Load: 49.0 t ADT: 250

SR 26-PA 26

Fair

Over: NITTANY CREEK

EXIT 161, Centre, PA

Built 1967 Load: 49.0 t ADT: 10,985

SR 80-I 80

Fair

Over: MOSHANNON CREEK

CLFD & CENTRE CNTY LINE, Centre, PA

Built 1968 Load: 49.0 t ADT: 7,860

T-609 COLYER RD

Fair

Over: SINKING CREEK

.8 MI FROM SR 322, Centre, PA

Built 1965 Load: 49.0 t ADT: 300

T-710 KATO ROAD

Fair

Over: NORTH FORK BEECH CREEK

2.5 MILES NE OF T-711, Centre, PA

Built 1972 Load: 49.0 t ADT: 50

EXTON BYPASS (EB)

Fair

Over: ROUTE US 30 BUSINESS

E. OF DOWNINGTOWN 21A13, Chester, PA

Built 1961 Load: 49.0 t ADT: 22,139

Showing 10,351-10,400 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.