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 4014 W GRNDVIEW

Fair

Over: OVER SR 79 NB/SB

CITY OF ERIE, Erie, PA

Built 1965 Load: 21.8 t ADT: 8,504

SCIOTA STREET

Fair

Over: HARE CREEK

2000 FT SOUTH OF SR0006, Erie, PA

Built 1974 Load: 21.8 t ADT: 2,425

SR 1002

Fair

Over: JACOBS CREEK

PERRY TOWNSHIP, Fayette, PA

Built 1966 Load: 21.8 t ADT: 321

T-417 MILL ROAD

Fair

Over: LICKING CREEK

2.6 MI.N.OF HARRISONVILLE, Fulton, PA

Built 1920 Load: 21.8 t ADT: 50

TOWNSHIP ROAD 463

Fair

Over: HEWITT RUN

VILLAGE OF MCCRACKEN, Greene, PA

Built 1968 Load: 21.8 t ADT: 30

SR 1005

Fair

Over: MILL CREEK

3.0 MILE SOUTH OF SR 1001, Huntingdon, PA

Built 1937 Load: 21.8 t ADT: 135

SR 2016

Fair

Over: BLACK LOG CREEK

.75 MI.N.OF ROCKHILL, Huntingdon, PA

Built 1962 Load: 21.8 t ADT: 599

T-428 Corbin Road

Fair

Over: RAYSTOWN BR.JUNIATA RIV.

4 MI.SE.OF HUNTINGDON, Huntingdon, PA

Built 1937 Load: 21.8 t ADT: 73

T-752 LAUREL RUN

Fair

Over: YELLOW CREEK

BTW T633 & T629, Indiana, PA

Built 1989 Load: 21.8 t ADT: 50

SR0080 EB

Fair

Over: BUFF & PITT RR; WOLF RUN

WOLF RUN NO.1, Jefferson, PA

Built 1970 Load: 21.8 t ADT: 10,437

SR0080 WB

Fair

Over: BUFF & PITT RR; WOLF RUN

WOLF RUN NO.2, Jefferson, PA

Built 1970 Load: 21.8 t ADT: 6,616

PA TPK (I-476)

Fair

Over: I-81 RAMP C&D

SOUTH ABINGTON, Lackawanna, PA

Built 1994 Load: 21.8 t ADT: 6,895

US 222 SB; SR 0222

Fair

Over: CONESTOGA RIVER

SOUTH OF LANCASTER CITY, Lancaster, PA

Built 1975 Load: 21.8 t ADT: 8,222

T589 YUMMERDALL RD

Fair

Over: SEGLOCK RUN

1000 FT NW OF SR 322, Lancaster, PA

Built 1972 Load: 21.8 t ADT: 515

ROCK HILL RD

Fair

Over: CONESTOGA RIVER

AT SR 3030 INTERSECTION, Lancaster, PA

Built 1923 Load: 21.8 t ADT: 400

LOCUST GROVE RD

Fair

Over: CONOY CREEK

1/2 MI WEST OF SR 441, Lancaster, PA

Built 1938 Load: 21.8 t ADT: 130

T-598 CLAY RD

Fair

Over: LITITZ RUN

150 FT NE OF SR 772, Lancaster, PA

Built 1990 Load: 21.8 t ADT: 100

SWAMP BRIDGE RD

Fair

Over: COCALICO CREEK

1.5 MILES SW OF SR 897, Lancaster, PA

Built 1967 Load: 21.8 t ADT: 680

PA 343; Pine Gr.

Fair

Over: LITTLE SWATARA CREEK

2 MI.S. FREDERICKSBURG, Lebanon, PA

Built 1966 Load: 21.8 t ADT: 7,730

SR 1005

Fair

Over: I-78; SR 0078

0.5 MI.W. OF EXIT #1, Lebanon, PA

Built 1969 Load: 21.8 t ADT: 502

PARTRIDGE STREET

Fair

Over: QUITTAPAHILLA CREEK

400 FT N OF WILLOW ST, Lebanon, PA

Built 1985 Load: 21.8 t ADT: 150

CHURCH LANE

Fair

Over: NORFOLK SOUTHERN RR

TREXLERTOWN, Lehigh, PA

Built 1930 Load: 21.8 t ADT: 1,500

SCHULTZ BRIDGE RD

Fair

Over: HOSENSACK CREEK

HOSENSACK L MILFORD TWP, Lehigh, PA

Built 1956 Load: 21.8 t ADT: 100

OVERHILL ROAD

Fair

Over: LITTLE LEHIGH CREEK

CITY OF ALLENTOWN, Lehigh, PA

Built 1931 Load: 21.8 t ADT: 500

SR 0081 I-81 SB

Fair

Over: NRFLK STHRN RR

HAZLE TWP 1 M S TR 924, Luzerne, PA

Built 1967 Load: 21.8 t ADT: 16,663

SR 2101 WILLOW ST

Fair

Over: SR 0081 I-81

WB TWP WILLOW ST OVR I-81, Luzerne, PA

Built 1966 Load: 21.8 t ADT: 207

SR 0093 TR 93

Fair

Over: BIG BLACK CREEK

HAZLE TWP 1.1 M S SR 3026, Luzerne, PA

Built 1964 Load: 21.8 t ADT: 18,520

ON DUFFYTOWN ROAD

Fair

Over: LAND

ELDRED BORO, McKean, PA

Built 1975 Load: 21.8 t ADT: 86

PA 940(LR 169)

Fair

Over: I-380(LR 1002)

I-380 INTERCHANGE, Monroe, PA

Built 1964 Load: 21.8 t ADT: 21,487

SR 3003(LR 560)

Fair

Over: POHOPOCO CREEK

KUNKLETOWN ROAD, Monroe, PA

Built 1910 Load: 21.8 t ADT: 1,792

BUSH LN T-233

Fair

Over: McMICHAEL CREEK

NEAR KELLERSVILLE, Monroe, PA

Built 1912 Load: 21.8 t ADT: 189

CLARKS RD T-533

Fair

Over: MID. BR. BRODHEAD CREEK

60 FT W.INT.T-533&PA447, Monroe, PA

Built 1957 Load: 21.8 t ADT: 57

PEEVY ROAD

Fair

Over: PERKIOMEN CREEK

.5 Mi S PA-29 ADC 2804-G4, Montgomery, PA

Built 1880 Load: 21.8 t ADT: 784

HIGH SCHOOL ROAD

Fair

Over: TACONY CREEK

0.45 MI SE OF SR 0611, Montgomery, PA

Built 1979 Load: 21.8 t ADT: 2,526

PA 33 NB(LR 1098)

Fair

Over: SR 1003(LR 48106)

PA 33 OVER STATE PARK RD., Northampton, PA

Built 1969 Load: 21.8 t ADT: 21,086

PA 33 SB(LR 1098)

Fair

Over: SR 1003(LR 48106)

PA 33 OVER STATE PARK RD., Northampton, PA

Built 1969 Load: 21.8 t ADT: 19,407

SR 2017(LR 48019)

Fair

Over: SCHOENECK CREEK

2 MI.SOUTH OF TATAMY, Northampton, PA

Built 1942 Load: 21.8 t ADT: 5,057

HANOVERVILLE ROAD

Fair

Over: MONOCACY CREEK

1 M. WEST OF PA 191, Northampton, PA

Built 1949 Load: 21.8 t ADT: 1,000

RIVER ROAD

Fair

Over: ALLEGHENY CREEK

2.4 MI N OF RIVERTON, Northampton, PA

Built 1913 Load: 21.8 t ADT: 450

MACADA ROAD

Fair

Over: MONOCACY CREEK

W. OF SR 3011 (CENTER ST), Northampton, PA

Built 1911 Load: 21.8 t ADT: 400

US22-322;SR0022 EB

Fair

Over: OWL HOLLOW RD.

2.4MI SE OF MILLERSTOWN, Perry, PA

Built 1966 Load: 21.8 t ADT: 8,985

US22-322;SR0022 WB

Fair

Over: OWL HOLLOW RD.

2.4MI SE OF MILLERSTOWN, Perry, PA

Built 1966 Load: 21.8 t ADT: 8,725

SR 2005

Fair

Over: LITTLE JUNIATA CR

MONTEBELLO, Perry, PA

Built 1961 Load: 21.8 t ADT: 519

PA 61 (LR 141)

Fair

Over: SCHUYLKILL RIVER RBMNRR

1 MI. S. OF PORT CLINTON, Schuylkill, PA

Built 1955 Load: 21.8 t ADT: 23,492

PA 125 (LR 53053)

Fair

Over: LITTLE MAHANTANGO CREEK

0.3 MI. S. OF COUNTY LINE, Schuylkill, PA

Built 1932 Load: 21.8 t ADT: 990

MAIN ST TREMONT

Fair

Over: MIDDLE CREEK

EAST END TREMONT, Schuylkill, PA

Built 1930 Load: 21.8 t ADT: 750

MAUCH CHUNK ST

Fair

Over: LITTLE SCHUYLKILL RIVER

ON MAUCH CHUNK ST.TAMAQUA, Schuylkill, PA

Built 1893 Load: 21.8 t ADT: 3,000

GREENWOOD STREET

Fair

Over: PANTHER CREEK

GREENWOOD ST TAMAQUA PA, Schuylkill, PA

Built 1947 Load: 21.8 t ADT: 1,000

FOX TWP T-408

Fair

Over: HOAGLAND BRANCH

3.1 MI. N. OF HILLSGROVE, Sullivan, PA

Built 1976 Load: 21.8 t ADT: 33

PA 287

Fair

Over: WILSON CREEK

3 MI NORTH OF MORRIS, Tioga, PA

Built 1973 Load: 21.8 t ADT: 2,444

Showing 901-950 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.