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 8027; RAMP B

Fair

Over: SR 3001; EISENHOWER BLVD

EISENHOWER INTERCHANGE, Dauphin, PA

Built 1970 Load: 32.7 t ADT: 11,990

SR 8027; RAMP A

Fair

Over: SR 3001; EISENHOWER BLVD

EISENHOWER INTERCHANGE, Dauphin, PA

Built 1970 Load: 32.7 t ADT: 12,827

WEST CHESTER PIKE

Fair

Over: CRUM CREEK

2MI.W.NEWTOWN SQ. 24F08, Delaware, PA

Built 1962 Load: 32.7 t ADT: 23,775

INTERSTATE 95

Fair

Over: NAAMANS CREEK

.3MI.N.DEL.ST.LINE 42D10, Delaware, PA

Built 1968 Load: 32.7 t ADT: 105,815

INTERSTATE 95

Fair

Over: LITTLE CRUM CREEK

.4MI.S.SELLERS AVE.44B01, Delaware, PA

Built 1975 Load: 32.7 t ADT: 86,269

SPROUL ROAD

Fair

Over: ITHAN CREEK

S.CONESTOGA ROAD 14G11, Delaware, PA

Built 1922 Load: 32.7 t ADT: 6,993

LINCOLN AVENUE

Fair

Over: AMOSLAND RUN / 3698-B10

.8MI.NORTH SR795 35E13, Delaware, PA

Built 1967 Load: 32.7 t ADT: 41,530

MID-COUNTY EXWY.

Fair

Over: MEDIA BYPASS;RAMPS;MARPL

1MI.W.SPRGFLD.RD. 34G02, Delaware, PA

Built 1989 Load: 32.7 t ADT: 77,104

PROVIDENCE ROAD

Fair

Over: MUCKINIPATTUS CREEK

.3MI.W.OAK LANE 35F05, Delaware, PA

Built 1956 Load: 32.7 t ADT: 14,932

BLUE BALL AVENUE

Fair

Over: INTERSTATE 95

.9MI.N.DELAWARE 42F09, Delaware, PA

Built 1968 Load: 32.7 t ADT: 1,777

SECOND AVENUE

Fair

Over: STONY CREEK

1MI.NORTH US-13 ADC 28-C3, Delaware, PA

Built 1963 Load: 32.7 t ADT: 2,226

CLYDE ROAD

Fair

Over: ITHAN CREEK

RADNOR TWP 9-D8, Delaware, PA

Built 1932 Load: 32.7 t ADT: 1,996

COUNTY LINE ROAD

Fair

Over: GULPH CREEK

1.25 MI. N. US-30 9-E2, Delaware, PA

Built 1963 Load: 32.7 t ADT: 1,668

GIRARD AVENUE

Fair

Over: UNNAMED CREEK 3697-F8

.3 Mi S Michigan Av, Delaware, PA

Built 1927 Load: 32.7 t ADT: 400

BETHEL ROAD

Fair

Over: BRANCH MARCUS HOOK CREEK

300 N of US-322 3805-K05, Delaware, PA

Built 1991 Load: 32.7 t ADT: 500

SANDY FLASH DR. N.

Fair

Over: TRIB. TO RIDLEY CREEK

RTE. 3 INTERSECTION, Delaware, PA

Built 1972 Load: 32.7 t ADT: 100

SR 120-PA 120

Fair

Over: LAUREL RUN

2 MI W ST MARYS, Elk, PA

Built 1949 Load: 32.7 t ADT: 3,322

SR 120-PA 120

Fair

Over: ELK CREEK

CITY OF ST MARYS, Elk, PA

Built 1935 Load: 32.7 t ADT: 8,042

SR 948-PA 948

Fair

Over: MILL CREEK

4 MI NW MONTMORENCI, Elk, PA

Built 1960 Load: 32.7 t ADT: 1,172

T-331 BOGGY RUN RD

Fair

Over: LITTLE TOBY CREEK

420 FT SOUTH OF SR 219, Elk, PA

Built 1911 Load: 32.7 t ADT: 234

SR 5 PURPLE HEART

Fair

Over: OVER WALNUT CREEK

FAIRVIEW TOWNSHIP, Erie, PA

Built 1930 Load: 32.7 t ADT: 6,399

SR 5 WB W 12 TH ST

Fair

Over: OVER SR 79 NB/SB

CITY OF ERIE, Erie, PA

Built 1982 Load: 32.7 t ADT: 13,934

SR 6 W. CENTER ST.

Fair

Over: OVER FRENCH CREEK TRIB

MILL VILLAGE BOROUGH, Erie, PA

Built 1984 Load: 32.7 t ADT: 2,692

SR 18 MAIN STREET

Fair

Over: OVER B&LE R.R.& RUN

PLATEA BOROUGH, Erie, PA

Built 1936 Load: 32.7 t ADT: 2,871

SR 20 W.MAIN ST.

Fair

Over: OVER TROUT RUN

LAKE CITY BOROUGH, Erie, PA

Built 1953 Load: 32.7 t ADT: 11,349

SR 20 E MAIN ST

Fair

Over: OVER ARUNDALE RUN

NORTH EAST TOWNSHIP, Erie, PA

Built 1972 Load: 32.7 t ADT: 3,639

SR 79 SB

Fair

Over: OVER SR 3008 CRANE ROAD.

FRANKLIN TOWNSHIP, Erie, PA

Built 1969 Load: 32.7 t ADT: 8,758

SR 89 BEAVER DAM R

Fair

Over: OVER BAILEY BROOK

VENANGO TOWNSHIP, Erie, PA

Built 1983 Load: 32.7 t ADT: 1,779

SR 90 EB/WB

Fair

Over: OVER CROOKED CREEK

GIRARD TOWNSHIP, Erie, PA

Built 1959 Load: 32.7 t ADT: 27,855

T-547 BECKMAN RD

Fair

Over: OVER SR 90 EB/WB

GIRARD TOWNSHIP, Erie, PA

Built 1959 Load: 32.7 t ADT: 131

SR 99 ERIE STREET

Fair

Over: OVER ELK CREEK TRIB S.BR

MCKEAN TOWNSHIP, Erie, PA

Built 1968 Load: 32.7 t ADT: 5,846

SR 505 PERRY HWY

Fair

Over: OVER MILL CREEK

MILL CREEK TOWNSHIP, Erie, PA

Built 1952 Load: 32.7 t ADT: 7,220

SR 1012 HOPKINS RD

Fair

Over: OVER AVERILL RUN

NORTH EAST TOWNSHIP, Erie, PA

Built 1955 Load: 32.7 t ADT: 343

SR 1013 WILLIAMS R

Fair

Over: OVER 12 MILE CREEK

NORTH EAST TOWNSHIP, Erie, PA

Built 1972 Load: 32.7 t ADT: 220

SR 2003 FLATT ROAD

Fair

Over: OVER FRENCH CK OVERFLOW

LEBOUEF TOWNSHIP, Erie, PA

Built 1954 Load: 32.7 t ADT: 2,264

SR 2034 OLD WATTSB

Fair

Over: OVER ALDER RUN

AMITY TOWNSHIP, Erie, PA

Built 1989 Load: 32.7 t ADT: 160

SR 3006 CROSSINGVL

Fair

Over: OVER TEMPLE CREEK BRANCH

ELK CREEK TOWNSHIP, Erie, PA

Built 1973 Load: 32.7 t ADT: 2,943

SR 3018 TANNERY RD

Fair

Over: OVER BRANDY RUN

GIRARD TOWNSHIP, Erie, PA

Built 1954 Load: 32.7 t ADT: 1,913

T-304 OLD RTE 86

Fair

Over: LITTLE CONNEAUTTEE CREEK

3/4 MILE SOUTH OF 3022, Erie, PA

Built 1958 Load: 32.7 t ADT: 376

SR 4011 GRUBB ROAD

Fair

Over: OVER SR 79 NB/SB

MCKEAN TOWNSHIP, Erie, PA

Built 1969 Load: 32.7 t ADT: 1,759

SR 4011 GRUBB ROAD

Fair

Over: OVER SR 90 EB/WB

MCKEAN TOWNSHIP, Erie, PA

Built 1959 Load: 32.7 t ADT: 1,816

T-358 BESSEMER AVE

Fair

Over: TEMPLE CREEK

400 FT S OF GAGE ROAD, Erie, PA

Built 1965 Load: 32.7 t ADT: 200

T-390 SOUTH CREEK

Fair

Over: HALLS RUN

850 SE OF DRURY ROAD, Erie, PA

Built 1972 Load: 32.7 t ADT: 846

T-952 STATE LINE

Fair

Over: W BR FRENCH CREEK

500 NORTH OF T-721, Erie, PA

Built 1990 Load: 32.7 t ADT: 33

T-504 HAPPY VALLEY

Fair

Over: CROOKED CREEK

1500 N OF SR 215, Erie, PA

Built 1960 Load: 32.7 t ADT: 270

T-417 OLD LAKE RD.

Fair

Over: RACCOON CREEK

600 EAST OF ELMWOOD RD, Erie, PA

Built 1992 Load: 32.7 t ADT: 81

T-548 CHERRY ST

Fair

Over: WALNUT CREEK

1000 SOUTH OF JOHNSON RD, Erie, PA

Built 1988 Load: 32.7 t ADT: 2,446

T-558 OLD FRENCH

Fair

Over: WALNUT CREEK

150 S OF JOHNSON RD, Erie, PA

Built 1983 Load: 32.7 t ADT: 1,706

T-448 FRY ROAD

Fair

Over: SHENANGO CREEK

1500 FT NORTH OF SR 3008, Erie, PA

Built 1993 Load: 32.7 t ADT: 380

ERIE STREET

Fair

Over: CONNEAUTTEE CREEK

400 FT SW OF SR 99, Erie, PA

Built 1973 Load: 32.7 t ADT: 1,632

Showing 4,351-4,400 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.