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

T-375 GRESOCK RD

Fair

Over: MAHONING CREEK

1.3 MILES WEST OF SR 119, Jefferson, PA

Built 1969 Load: 38.1 t ADT: 311

SR 2016

Fair

Over: MAHANTANGO CREEK

1 MI E RICHFIELD, Juniata, PA

Built 1940 Load: 38.1 t ADT: 335

T-535 SUNSET DR

Fair

Over: LAUREL RUN

65 FT EAST OF T-531 INTER, Juniata, PA

Built 1990 Load: 38.1 t ADT: 150

SR 0081 I-81 SB

Fair

Over: SR 8005 RAMPS A & C

SCRANTON CITY OV RMPS A&C, Lackawanna, PA

Built 1966 Load: 38.1 t ADT: 34,172

SR 0081 I-81 SB

Fair

Over: TR 438 & TUNKHNOCK CREEK

SCOTT TWP OVER TR 438, Lackawanna, PA

Built 1961 Load: 38.1 t ADT: 13,038

T-308 PHILLIPS RD

Fair

Over: LEHIGH RIVER

CLIFTON 1/4 MI NW OF 507, Lackawanna, PA

Built 1984 Load: 38.1 t ADT: 500

EYNON STREET

Fair

Over: NORFOLK SOUTHERN RR

AT MERIDIAN ST INTERSECT, Lackawanna, PA

Built 1979 Load: 38.1 t ADT: 10,800

PA 272; Oregon pk.

Fair

Over: LITITZ CREEK

OREGON IN MANHEIM TOWNSHP, Lancaster, PA

Built 1949 Load: 38.1 t ADT: 9,004

PA722;E Petersburg

Fair

Over: Bachman Run

0.25 mi.E. Groffs Corner, Lancaster, PA

Built 1996 Load: 38.1 t ADT: 10,757

897 Weaverland

Fair

Over: CONESTOGA RIVER

1 MI. S. OF TERRE HILL, Lancaster, PA

Built 1965 Load: 38.1 t ADT: 3,970

SR1003 HorseshoeRd

Fair

Over: AMTRAK

0.1 MI.N. PA 340, Lancaster, PA

Built 1958 Load: 38.1 t ADT: 7,886

SR 1051

Fair

Over: STONY RUN CREEK

REAMSTOWN, Lancaster, PA

Built 1969 Load: 38.1 t ADT: 6,565

SR 4008 E-Town Rd

Fair

Over: SHELLS RUN

1.5 MI.N.W. MILTON GROVE, Lancaster, PA

Built 1992 Load: 38.1 t ADT: 2,906

SR 4020

Fair

Over: LITTLE CONESTOGA CREEK

WEST OF PARK CITY, Lancaster, PA

Built 1984 Load: 38.1 t ADT: 12,256

SR 4027 NColebrook

Fair

Over: LITTLE CHICKIES CREEK

1.5 MI.N.W. MASTERSONVILE, Lancaster, PA

Built 1960 Load: 38.1 t ADT: 2,712

T862 STONE HILL RD

Fair

Over: LITTLE MUDDY CREEK

3/4 MI WEST OF SR 897, Lancaster, PA

Built 1973 Load: 38.1 t ADT: 825

T999 INDIAN RUN RD

Fair

Over: INDIAN RUN

0.7 MI SOUTH OF SR 1026, Lancaster, PA

Built 1992 Load: 38.1 t ADT: 155

T-302 SECOND ST

Fair

Over: CONOY CREEK

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

Built 1931 Load: 38.1 t ADT: 130

BLACK BARREN RD

Fair

Over: CONOWINGO CREEK

1/2 MI WEST OF US 222, Lancaster, PA

Built 1975 Load: 38.1 t ADT: 340

5TH ST.

Fair

Over: CONNOQUENESSING CREEK

ELLWOOD CITY-5TH ST., Lawrence, PA

Built 1996 Load: 38.1 t ADT: 10,315

POLLOCK STORE ROAD

Fair

Over: I-79 N.B. & S.B.

0.6 MI W OF MOORE CORNER, Lawrence, PA

Built 1963 Load: 38.1 t ADT: 157

COFFEE RUN RD

Fair

Over: COFFEE RUN

209003 SOUTH OF T-565 INT, Lawrence, PA

Built 1991 Load: 38.1 t ADT: 50

SR 2014

Fair

Over: MILL CREEK

SHERIDAN, Lebanon, PA

Built 1952 Load: 38.1 t ADT: 407

T-372 INDTN GP RD

Fair

Over: CEMETARY ENTRANCE RD.

VET.BRIDGE INDIANTOWN GAP, Lebanon, PA

Built 1987 Load: 38.1 t ADT: 400

N LANCASTER STREET

Fair

Over: OIL RUN

1.8 I/S 72-22/OIL RUN, Lebanon, PA

Built 1956 Load: 38.1 t ADT: 200

PA 309 (LR 226)

Fair

Over: ONTELAUNEE CREEK

2 MI.N.OF PA143, Lehigh, PA

Built 1930 Load: 38.1 t ADT: 8,355

SR 4025 (LR 39064)

Fair

Over: LYON CREEK

LYON VALLEY ROAD, Lehigh, PA

Built 1964 Load: 38.1 t ADT: 621

SR 0081 I-81 SB

Fair

Over: SR 3010

DORRANCE TWP OVER SR 3010, Luzerne, PA

Built 1965 Load: 38.1 t ADT: 17,836

SR 0081 I-81 NB

Fair

Over: PLANE STREET

AVOCA BO .2M S LACK CO LN, Luzerne, PA

Built 1966 Load: 38.1 t ADT: 28,335

SR 0115 TR 115

Fair

Over: BEAR CREEK LAKE OUTLET

BEAR CR TWP 61 N SR 2041, Luzerne, PA

Built 1949 Load: 38.1 t ADT: 7,426

SR 0502 TR 502

Fair

Over: SPRING BROOK

PITTSTN TWP 600E CO LINE, Luzerne, PA

Built 1957 Load: 38.1 t ADT: 4,152

SR 0015 SBL

Fair

Over: SB OVER LYC CK/CK DRAINS

CITY OF WILLIAMSPORT, Lycoming, PA

Built 1974 Load: 38.1 t ADT: 14,984

S.R. 118

Fair

Over: OVER MUNCY CREEK

0.25 MI E OF HUGHESVILLE, Lycoming, PA

Built 1975 Load: 38.1 t ADT: 3,914

SR-0180 WB

Fair

Over: OVER SR 0220

HALLS STATION, Lycoming, PA

Built 1975 Load: 38.1 t ADT: 8,866

S.R. 220

Fair

Over: OVER DAUGHERTY@S RUN

0.5 MI W OF WILLIAMSPORT, Lycoming, PA

Built 1971 Load: 38.1 t ADT: 17,531

T-397

Fair

Over: WHITE DEER HOLE CREEK

1.5 MI. W. OF ELIMSPORT, Lycoming, PA

Built 1935 Load: 38.1 t ADT: 108

SR 8002 RAMP A

Fair

Over: OVER 180E/WB RAMP B US15

CITY OF WILLIAMSPORT, Lycoming, PA

Built 1974 Load: 38.1 t ADT: 2,346

SR 219-US 219

Fair

Over: FOSTER BROOK

1 MI N BRADFORD, McKean, PA

Built 1977 Load: 38.1 t ADT: 3,113

SR 321-PA 321

Fair

Over: KINZUA CREEK

9 MILES NORTH WEST KANE, McKean, PA

Built 1966 Load: 38.1 t ADT: 688

SR 646-PA 646

Fair

Over: PENNBROOK RUN

GILMORE, McKean, PA

Built 1930 Load: 38.1 t ADT: 979

SR 80 EB

Fair

Over: OVER LIT.NESHANNOCK CK

LACKAWANNOCK TOWNSHIP, Mercer, PA

Built 1965 Load: 38.1 t ADT: 11,198

SR 80 WB

Fair

Over: OVER LIT.NESHANNOCK CK

LACKAWANNOCK TOWNSHIP, Mercer, PA

Built 1966 Load: 38.1 t ADT: 11,377

SR 80 EB

Fair

Over: OVER SR 19 NB/SB PERRY

EAST LACKAWANNOCK TWP., Mercer, PA

Built 1965 Load: 38.1 t ADT: 12,524

SR 80 EB

Fair

Over: OVER SR 173 GROVE CITY

WOLF CREEK TOWNSHIP, Mercer, PA

Built 1965 Load: 38.1 t ADT: 12,564

SR 846 ORNGVLLE RD

Fair

Over: CHESTNUT RUN

PYMATUNING TOWNSHIP, Mercer, PA

Built 1938 Load: 38.1 t ADT: 1,822

PA 33 (LR 796)

Fair

Over: SR 2002(LR 45007)

PA.33OVER CHERRYVALLEY RD, Monroe, PA

Built 1958 Load: 38.1 t ADT: 40,613

GRAVEL PIKE

Fair

Over: LODAL CREEK

PERK VALLE HS 20D2/3141H5, Montgomery, PA

Built 1947 Load: 38.1 t ADT: 9,181

MID-COUNTY EXWY.SB

Fair

Over: SCHUYLKILL EXWAY;RAMPS

CONSHOHOCKEN INTER3367J10, Montgomery, PA

Built 1977 Load: 38.1 t ADT: 54,564

MID-COUNTY EXWY.SB

Fair

Over: PLYMOUTH CREEK;ACCESS RD

PLYMOUTH TWP. 3368A07, Montgomery, PA

Built 1974 Load: 38.1 t ADT: 54,564

CHURCH ROAD

Fair

Over: JENKINTOWN CREEK

.5MI.WEST PHILA. 3371-C09, Montgomery, PA

Built 1959 Load: 38.1 t ADT: 8,241

Showing 7,201-7,250 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.