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

US 222 NB; SR 0222

Fair

Over: SR 1049; GLENWOOD RD

0.75 MI.N.W. OF HAHNSTOWN, Lancaster, PA

Built 1970 Load: 27.2 t ADT: 21,653

US 222 SB; SR 0222

Fair

Over: SR 1059; Muddy Creek Rd

0.25 mi.W. of Turnpike, Lancaster, PA

Built 1976 Load: 27.2 t ADT: 17,953

US 222 NB; SR 0222

Fair

Over: SR 1059; MUDDY CREEK RD

0.25 MI.S. OF TURNPIKE, Lancaster, PA

Built 1976 Load: 27.2 t ADT: 18,311

PA 272; N.Reading

Fair

Over: LITTLE MUDDY CREEK

ADAMSTOWN BORO, Lancaster, PA

Built 1941 Load: 27.2 t ADT: 9,074

PA 283 EB; SR 0300

Fair

Over: T-871; BEVERLY RD.

1/2 MI. E. OF CONEWAGO CR, Lancaster, PA

Built 1968 Load: 27.2 t ADT: 21,988

PA 283 WB; SR 0300

Fair

Over: BEVERLY RD; T-871

1/2 MI. E. OF CONEWAGO CR, Lancaster, PA

Built 1968 Load: 27.2 t ADT: 23,485

SR 4049;L-ville rd

Fair

Over: PA 283; SR 0300

LANDISVILLE, Lancaster, PA

Built 1969 Load: 27.2 t ADT: 4,990

BUTTER ROAD

Fair

Over: LANDIS RUN

2500 FT NORTH OF SR 23, Lancaster, PA

Built 1993 Load: 27.2 t ADT: 1,035

SR 8003 RAMP L

Fair

Over: LITTLE CONESTOGA CREEK

FLORYS MILL, Lancaster, PA

Built 1969 Load: 27.2 t ADT: 2,819

PULASKI RD

Fair

Over: SR 0376 EB-WB

1/4 MI. EAST OF SR 0551, Lawrence, PA

Built 1973 Load: 27.2 t ADT: 3,048

MARKET ST

Fair

Over: OVER LITTLE NESHANNOCK C

1/2 MI.EAST OF SR 0158, Lawrence, PA

Built 1962 Load: 27.2 t ADT: 3,195

SMALLS FERRY RD

Fair

Over: HICKORY CREEK

037015 NORTH BEAVER TWP, Lawrence, PA

Built 1961 Load: 27.2 t ADT: 200

US 322; SR 0322

Fair

Over: SR 0117; LVRT

1 MI.S.W. CORNWALL, Lebanon, PA

Built 1963 Load: 27.2 t ADT: 21,284

SR 4017 HAR SCH RD

Fair

Over: I-81; SR 0081

1.25 MI.W. OF EXIT 85, Lebanon, PA

Built 1967 Load: 27.2 t ADT: 1,073

PA TPK (I-76)

Fair

Over: Conewago Creek

SOUTH LONDONDERRY TWP, Lebanon, PA

Built 1949 Load: 27.2 t ADT: 24,423

PA 100(LR 672)

Fair

Over: HASSEN CREEK

1.5 MI.N.OF FOGLESVILLE, Lehigh, PA

Built 1932 Load: 27.2 t ADT: 17,193

SR1002WB(LR443PAR)

Fair

Over: US 22(LR 771)

KUHNSVILLE EXIT, Lehigh, PA

Built 1953 Load: 27.2 t ADT: 9,127

CENTRAL ROAD

Fair

Over: JORDAN CREEK

HEIDELBERG TOWNSHIP, Lehigh, PA

Built 1952 Load: 27.2 t ADT: 50

ULRICH MILL RD

Fair

Over: ONTELAUNEE CREEK

ULRICHS BRIDGE S OF 143, Lehigh, PA

Built 1954 Load: 27.2 t ADT: 200

WALNUT ST.

Fair

Over: UNNAMED STREAM

SE OF SLATINGTON, Lehigh, PA

Built 1939 Load: 27.2 t ADT: 50

OLD ROUTE 22

Fair

Over: MILL CREEK

1.2 MI. W. OF ROUTE 863, Lehigh, PA

Built 1929 Load: 27.2 t ADT: 1,548

I-81 NB

Fair

Over: NESCOPECK CREEK

BUTLER TWP .5 M S SR 3040, Luzerne, PA

Built 1965 Load: 27.2 t ADT: 13,126

TR93 VALMONT PKWAY

Fair

Over: I-81 EXIT 145

SUGARLOAF TWP OVER I-81, Luzerne, PA

Built 1965 Load: 27.2 t ADT: 21,054

SR 0309 TR 309

Fair

Over: TR 11 WYOMING AVENUE

KINGSTON BORO OVER TR 11, Luzerne, PA

Built 1980 Load: 27.2 t ADT: 34,671

SR0315 TR315 NB&SB

Fair

Over: SR 0309 TR 309 NB & SB

WLKS BARRE CTY OVR TR 309, Luzerne, PA

Built 1991 Load: 27.2 t ADT: 18,362

SR 1026 KUNKLE RD

Fair

Over: LEONARD CREEK

DALLAS TWP 300 W TR 309, Luzerne, PA

Built 1940 Load: 27.2 t ADT: 1,930

SR 3015 BL CRK RD

Fair

Over: HORTON CREEK

NESCOPECK TP .7M N SR3042, Luzerne, PA

Built 1961 Load: 27.2 t ADT: 442

SR 6309

Fair

Over: SR 0081 I-81 SB

HANOVER TWP OVER I-81 SB, Luzerne, PA

Built 1966 Load: 27.2 t ADT: 20,243

SR 14

Fair

Over: OVER FROZEN RUN

1 MILE SOUTH OF RALSTON, Lycoming, PA

Built 1930 Load: 27.2 t ADT: 2,552

SR 0044 (LR266)

Fair

Over: OVER TOMBS RUN

7 MI N OF JERSEY SHORE, Lycoming, PA

Built 1929 Load: 27.2 t ADT: 1,422

I 180 EB

Fair

Over: E.B. OVER S.R. 2061

1 MI SE OF MUNCY, Lycoming, PA

Built 1973 Load: 27.2 t ADT: 6,794

T-847

Fair

Over: MILL CREEK

1.9 MI NW OF WARRENSVILLE, Lycoming, PA

Built 1930 Load: 27.2 t ADT: 80

SR 6-US 6

Fair

Over: SARTWELL CREEK

4 MI E PORT ALLEGANY, McKean, PA

Built 1967 Load: 27.2 t ADT: 3,572

SR 46-PA 46

Fair

Over: NORTH BRANCH COLE CREEK

6 MI N E SMETHPORT, McKean, PA

Built 1966 Load: 27.2 t ADT: 1,747

SR 346-PA 346

Fair

Over: WILLOW CREEK

14 MI W BRADFORD, McKean, PA

Built 1970 Load: 27.2 t ADT: 520

SR 2009 CNTRTWN.RD

Fair

Over: OVER WOLF CREEK BR

WOLF CREEK TOWNSHIP, Mercer, PA

Built 1955 Load: 27.2 t ADT: 313

SR 3013 ORCHARD RD

Fair

Over: OVER SR 80 EB/WB

LACKAWANNOCK TOWNSHIP, Mercer, PA

Built 1965 Load: 27.2 t ADT: 464

SR 1019 CREEK RD.

Fair

Over: SANDY CREEK

SANDY LAKE TOWNSHIP, Mercer, PA

Built 1960 Load: 27.2 t ADT: 183

SR 103-PA 103

Fair

Over: KISHACOQUILLAS CREEK

LEWISTOWN BORO, Mifflin, PA

Built 1958 Load: 27.2 t ADT: 5,828

SR 1005

Fair

Over: TEA CREEK

REEDSVILLE, Mifflin, PA

Built 1930 Load: 27.2 t ADT: 5,997

SR 3007

Fair

Over: WAKEFIELD RUN

3 MILES NE MCVEYTOWN, Mifflin, PA

Built 1946 Load: 27.2 t ADT: 362

I- 80(LR794)

Fair

Over: BRODHEAD CREEK

I-80 INTERBORO BRIDGE, Monroe, PA

Built 1958 Load: 27.2 t ADT: 89,629

I-80 (LR 794)

Fair

Over: T-663(RIVER ROAD)

I-80 OVER RIVER ROAD, Monroe, PA

Built 1958 Load: 27.2 t ADT: 33,551

PA 191 (LR 171)

Fair

Over: MONROE COUNTY RAIL AUTH.

CRESCO, Monroe, PA

Built 1954 Load: 27.2 t ADT: 5,591

I-380 SB(LR 1002)

Fair

Over: SR 8025 (LR 1002 RAMP C)

TOBYHANNA EXIT, Monroe, PA

Built 1969 Load: 27.2 t ADT: 12,091

I-380 NB(LR 1002)

Fair

Over: SR 8025(LR 1002 RAMP C)

TOBYHANNA EXIT, Monroe, PA

Built 1969 Load: 27.2 t ADT: 12,216

PA 611 (LR 166)

Fair

Over: CHERRY CREEK

AT INT SR 2028, Monroe, PA

Built 1929 Load: 27.2 t ADT: 2,714

PA 611 (LR 168)

Fair

Over: SCOT RUN

SCOTRUN, Monroe, PA

Built 1948 Load: 27.2 t ADT: 21,965

US 209 BUS.(LR166)

Fair

Over: BRODHEAD CREEK

VETERANS MEMORIAL BRIDGE, Monroe, PA

Built 1960 Load: 27.2 t ADT: 20,673

TURKEY HILL RD

Fair

Over: MCMICHAEL CREEK

LITTLE KUNKLETOWN, Monroe, PA

Built 1954 Load: 27.2 t ADT: 139

Showing 2,051-2,100 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.