Total Bridges
14,867
Public highway bridges in Pennsylvania
State profile · Above national median SD
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Pennsylvania — drawn straight from the FHWA National Bridge Inventory.
Total Bridges
14,867
Public highway bridges in Pennsylvania
Good Condition
37.4%
5,564 bridges rated 7-9
-12.6pp vs 50% benchmark
Poor Condition
10.5%
1,561 bridges rated 0-4
Structurally Deficient
10.5%
1,561 bridges flagged for repair priority
3.5pp vs national avg 7.0%
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Pennsylvania on the same metric.
26
02
42
38
22
Six lowest-condition bridges in Pennsylvania, ranked by composite NBI rating. Each is inspected at least every 24 months.
Over: KISKIMINETAS RIVER
SALTSBURG, Indiana, PA
Over: TOBYS CREEK
100 FT NE OF SR 309, Luzerne, PA
Over: OVER SHENANGO RIVER TRIB
HEASLEY RD SHENANGO TWP, Mercer, PA
Over: LAUREL HILL CREEK
BARRONVALE, Somerset, PA
Over: Fallen Timber Run
Clark St, Hooversville, Somerset, PA
Over: LOYALSOCK CREEK
BORO OF FORKSVILLE, Sullivan, PA
Over: HUNTERS CREEK
PORT ROYAL, Juniata, PA
Over: LACKAWANNA RIVER
OLD FORGE B JCT SR 3019, Lackawanna, PA
Over: NORFOLK SOUTHERN RR
SCRANTON 813' E SR 3013, Lackawanna, PA
Over: Unnamed Tributary
0.1 mile from Means Rd, Lawrence, PA
Over: MILL CREEK
SHERIDAN, Lebanon, PA
Over: HAZEL DYKE
NOBLE ST HAZELDYKE, Lebanon, PA
Over: JORDAN CREEK
NORTH OF LOWHILL, Lehigh, PA
Over: MONOCACY CREEK
AT PAINT MILL, Lehigh, PA
Over: NESCOPECK CREEK
BLACK CRK TWP INT SR 3016, Luzerne, PA
Over: OVER HARTHEGIG RUN
LACKAWANNOCK TOWNSHIP, Mercer, PA
Over: BRANCH HONEY CREEK
NAGINEY, Mifflin, PA
Over: SKIPPACK CREEK / 3031F04
N.OF ELROY ROAD 16A03, Montgomery, PA
Over: BRANCH PENNYPACK CREEK
UPPER MORELAND 3259B01, Montgomery, PA
Over: DONNY BROOK
N OF CLAHOR AVE 3141-E10, Montgomery, PA
Over: OVER DELWARE RUN
4 MI NORTH WATSONTOWN, Northumberland, PA
Over: AMTRAK
GIRARD;BELMONT AV 3589F05, Philadelphia, PA
Over: CSX TRENTON LINE
.1MI.NW.HUNTING PK.3480D9, Philadelphia, PA
Over: WEAVER RUN
WINDBER BOROUGH, Somerset, PA
Over: CSX RAILROAD
.2 MI.E.OF ROCKWOOD, Somerset, PA
Over: DARK SHADE CREEK
CAIRNBROOK, Somerset, PA
Over: WELLS CREEK
1.2 MI.E.OF FRIEDENS, Somerset, PA
Over: SPRUCE RUN
1/4 MI NORTH OF SR 3029, Somerset, PA
Over: LAUREL HILL CREEK
BAKERSVILLE, Somerset, PA
Over: BUFFALO CREEK
GARRETT BOROUGH, Somerset, PA
Over: BUCKLEY HOLLOW RUN
3 MI NORTH OF OSCEOLA, Tioga, PA
Over: KELSEY CREEK
WATER ST. WELLSBORO BORO, Tioga, PA
Over: LITTLE MINGO CREEK
NOTTINGHAM TOWNSHIP, Washington, PA
Over: PIGEON CREEK
FALLOWFIELD TOWNSHIP, Washington, PA
Over: CHARTIERS CREEK
300' SOUTH OF SR 1009, Washington, PA
Over: WEST BR WALLENPAUPACK CR
SALEM TWP @ JCT SR 3009, Wayne, PA
Over: BALLS CREEK
SCOTT TWP 2.5 M E SR 4037, Wayne, PA
Over: CEDAR CREEK
ROSTRAVER TOWNSHIP, Westmoreland, PA
Over: BRUSH CREEK
NORTH HUNTINGDON TOWNSHIP, Westmoreland, PA
Over: BRUSH CREEK
IRWIN BOROUGH, Westmoreland, PA
Over: LOYALHANNA CREEK
VILLAGE OF SHIRLEY, Westmoreland, PA
Over: MILL CREEK
0.8 MI S OF EXIT-19, I-83, York, PA
Over: Norfolk Southern RR
0.6 MI.S. US Rt 30 INTER, York, PA
Over: EAST BRANCH CODORUS CREE
2 MI.S. OF DALLASTOWN, York, PA
Over: HONEY RUN
2 MI. N.E. THOMASVILLE, York, PA
Over: LAKE REDMAN
1 MILE EAST OF JACOBUS, York, PA
Over: MILL CREEK
PA462 & I83 INTER, York, PA
Over: NONE - PARALLEL TO CSX
Ramp-MA12 Homestead Br, Allegheny, PA
Over: BLUFF
Blvd of The Allies Bluffs, Allegheny, PA
Over: BR. RACCOON RUN
1 MI. S.W. OF SR 0030, Allegheny, PA
Over: SUGAR CREEK
BRADYS BEND NO.1, Armstrong, PA
Over: E. BRANCH RED CLAY CRK
1.1 Mi S US-1 3802-B5, Chester, PA
Over: SCARLET RUN
S of Cypress St 3801B7, Chester, PA
Over: DEER CREEK
KNIGHTOWN RD, Clarion, PA
Over: PAINT CREEK
PAINT MILLS, Clarion, PA
Over: TOBY CREEK
1.2 mi NW, int. w/ SR1005, Clarion, PA
Showing 6,851-6,900 of 14,867 bridges
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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
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.