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 3003

Fair

Over: MINNOW RUN

3 MI.SW.OF WARFORDSBURG, Fulton, PA

Built 1938 Load: 36.3 t ADT: 378

SR 0018

Fair

Over: FISH CREEK

FREEPORT TOWNSHIP, Greene, PA

Built 1933 Load: 36.3 t ADT: 872

SR 1007

Fair

Over: SOUTH FORK TENMILE CREEK

JEFFERSON & MORGAN TWPS., Greene, PA

Built 1956 Load: 36.3 t ADT: 111

SR 4025

Fair

Over: BATES FORK BROWN CREEK

MORRIS TOWNSHIP, Greene, PA

Built 1945 Load: 36.3 t ADT: 46

TOWNSHIP ROAD 390

Fair

Over: GRAYS FORK

EAST OF GRAYSVILLE, Greene, PA

Built 1961 Load: 36.3 t ADT: 20

PA TPK (I-76) EB

Fair

Over: T-300& SRVCE.RD

WEST OF TUSCARORA TUNNEL, Huntingdon, PA

Built 1969 Load: 36.3 t ADT: 21,197

SR0403

Fair

Over: TRIB TO CONEMAUGH RIVER

CRAMER NO.2, Indiana, PA

Built 1942 Load: 36.3 t ADT: 3,468

SR1017

Fair

Over: S BR OF TWO LICK CR

HILL ROAD, Indiana, PA

Built 1941 Load: 36.3 t ADT: 191

SR2002

Fair

Over: CONEMAUGH RIVER

BAIRDSTOWN, Indiana, PA

Built 1934 Load: 36.3 t ADT: 1,265

SR4026

Fair

Over: MAHONING CREEK

NORTH POINT, Indiana, PA

Built 1961 Load: 36.3 t ADT: 87

SR0036

Fair

Over: MAHONING CREEK

MARY A. WILSON, Jefferson, PA

Built 1983 Load: 36.3 t ADT: 8,506

SR0080 EB

Fair

Over: T-450 MOORE ROAD

MOORE ROAD EB, Jefferson, PA

Built 1964 Load: 36.3 t ADT: 10,252

SR0080 WB

Fair

Over: T-479 MOORE ROAD

MOORE ROAD, Jefferson, PA

Built 1964 Load: 36.3 t ADT: 10,486

SR2010

Fair

Over: TROUT RUN

TROUT RUN NO.2, Jefferson, PA

Built 1983 Load: 36.3 t ADT: 140

SR4001

Fair

Over: SR0080 EB&WB

ROSEVILLE NO.1, Jefferson, PA

Built 1960 Load: 36.3 t ADT: 448

SR4004

Fair

Over: MILL RUN

MILL RUN NO.1, Jefferson, PA

Built 1961 Load: 36.3 t ADT: 163

SR 22-US 22

Fair

Over: SR 2007 & LOCUST RUN

2 MI W THOMPSONTOWN, Juniata, PA

Built 1972 Load: 36.3 t ADT: 7,250

SR 235-PA 235

Fair

Over: LITTLE LOST CREEK

MCALISTERVILLE, Juniata, PA

Built 1937 Load: 36.3 t ADT: 1,023

SR 0081 I-81 NB

Fair

Over: TWP RD 442 BURCHER AVE

S ABINGTON TWP OVER T-442, Lackawanna, PA

Built 1961 Load: 36.3 t ADT: 14,476

SR 0171 TR 171

Fair

Over: ABONDONED LACA&D&H RR

FELL TWP JCT SR 1003, Lackawanna, PA

Built 1976 Load: 36.3 t ADT: 8,028

T362 Malleable Rd.

Fair

Over: US 30 EB/WB

E BDY OF COLUMBIA BORO, Lancaster, PA

Built 1970 Load: 36.3 t ADT: 1,941

US 222 NB; SR 0222

Fair

Over: CONESTOGA RIVER

SOUTH OF LANCASTER CITY, Lancaster, PA

Built 1970 Load: 36.3 t ADT: 10,430

PA 772; Manheim St

Fair

Over: Little ChIques Creek

North of Mt. Joy, Lancaster, PA

Built 1987 Load: 36.3 t ADT: 7,424

PA 772; SR 0772

Fair

Over: MUDDY CREEK

1 MI.N.W. INTERCOURSE, Lancaster, PA

Built 1980 Load: 36.3 t ADT: 3,083

SR 1005 Mt Sidney

Fair

Over: AMTRAK

0.1 MI. N of Smoketown, Lancaster, PA

Built 1970 Load: 36.3 t ADT: 6,574

SR 4019; TWP RD

Fair

Over: AMTRAK

DAUPHIN CO. LINE, Lancaster, PA

Built 1985 Load: 36.3 t ADT: 2,074

5TH STREET

Fair

Over: PA TPK (I-76)

DENVER BORO, Lancaster, PA

Built 1949 Load: 36.3 t ADT: 300

RUTLEDGE AVENUE

Fair

Over: TRIB TO CONESTOGA RIVER

0.5 MI EAST OF SR 0222, Lancaster, PA

Built 1992 Load: 36.3 t ADT: 260

T-870 QUARRY RD

Fair

Over: LITTLE CHIQUES CREEK

3/4 MI EAST OF SR 4025, Lancaster, PA

Built 1968 Load: 36.3 t ADT: 420

SNYDER HOLLOW RD

Fair

Over: HUBER RUN

0.2 M SW OF SR 272, Lancaster, PA

Built 1950 Load: 36.3 t ADT: 490

SR 0376 EB

Fair

Over: OLD PULASKI RD

1/2 MI. SOUTH OF SR 8002, Lawrence, PA

Built 1970 Load: 36.3 t ADT: 6,573

MARKET ST

Fair

Over: MILL RACE

900WEST OF TR 0168, Lawrence, PA

Built 1962 Load: 36.3 t ADT: 3,195

Plain Grove N Lib

Fair

Over: INTERSTATE 79

2.7 MI N OF PA-108, Lawrence, PA

Built 1963 Load: 36.3 t ADT: 319

VALLEY VIEW RD

Fair

Over: DEER CREEK

209001 SOUTH/ RT 208 INT, Lawrence, PA

Built 1995 Load: 36.3 t ADT: 50

US 22; Allentown B

Fair

Over: PA 934; SR 0934

1 MI.S. OF ED.MARTIN M.R., Lebanon, PA

Built 1946 Load: 36.3 t ADT: 8,582

PA 72; SR 0072

Fair

Over: US 22; SR 0022

INTERCHANGE PA 72 & US 22, Lebanon, PA

Built 1946 Load: 36.3 t ADT: 6,692

US 322 EB; SR 0322

Fair

Over: PA 72; SR 0072

CORNWALL BORO, Lebanon, PA

Built 1963 Load: 36.3 t ADT: 3,404

WEBSTER SCHOOL RD

Fair

Over: TRIB SWATARA CREEK

.3S MEM LK/TR SWATARA CRK, Lebanon, PA

Built 1940 Load: 36.3 t ADT: 100

DISTILLERY RD.

Fair

Over: HAMMER CREEK

1.2SW SCHAEFFRTWN/HAMMER, Lebanon, PA

Built 1960 Load: 36.3 t ADT: 300

S LANC. AVE T-552

Fair

Over: HAMMER CREEK

SCHAFFERS TRIB HAMMER CR, Lebanon, PA

Built 1920 Load: 36.3 t ADT: 100

CLEAR SPG RD T-376

Fair

Over: NORFOLK SOUTHERN CORP

0.3 MI N OF US 422, Lebanon, PA

Built 1937 Load: 36.3 t ADT: 1,500

OAK ST

Fair

Over: SNITZ CREEK

OAK ST. SNITZ CREEK, Lebanon, PA

Built 1955 Load: 36.3 t ADT: 1,000

NORTH 7TH STREET

Fair

Over: QUITTAPAHILLA CREEK

275 NORTH OF WILLOW ST, Lebanon, PA

Built 1985 Load: 36.3 t ADT: 2,000

SR 2027(LR39001)

Fair

Over: LEIBERT CREEK

VILLAGE OF VERA CRUZ, Lehigh, PA

Built 1979 Load: 36.3 t ADT: 3,574

SR 3003(LR 39085)

Fair

Over: LITTLE LEHIGH CREEK

SOUTH OF EAST TEXAS, Lehigh, PA

Built 1961 Load: 36.3 t ADT: 9,735

SR 4004(LR 39071)

Fair

Over: HAASEN CREEK

HAASADAHL & HILLTOP RDS., Lehigh, PA

Built 1964 Load: 36.3 t ADT: 1,108

SOUTH TENTH STREET

Fair

Over: LITTLE LEHIGH CREEK

SOUTH OF DR.M.L.KING DR., Lehigh, PA

Built 1932 Load: 36.3 t ADT: 1,000

SR 0115 NB TR 115

Fair

Over: SR 8015 RAMP SEG 770

PLAINS TWP OVER SR 8015, Luzerne, PA

Built 1963 Load: 36.3 t ADT: 12,989

SR 0309 TR 309

Fair

Over: BIG BLACK CREEK

HAZLE TWP .1 M N TR 940, Luzerne, PA

Built 1928 Load: 36.3 t ADT: 15,032

SR 0315 TR 315

Fair

Over: MILL CREEK

DUPONT BO 600 N SR 2035, Luzerne, PA

Built 1947 Load: 36.3 t ADT: 5,076

Showing 6,551-6,600 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.