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

SR0322

Fair

Over: TRIB TO SOLDIER RUN

PRESCOTTVILLE NO.2, Jefferson, PA

Built 1927 Load: 40.8 t ADT: 4,834

SR0322

Fair

Over: SOLDIER RUN

PRESCOTTVILLE NO.3, Jefferson, PA

Built 1927 Load: 40.8 t ADT: 3,579

SR0322

Fair

Over: RATHMEL RUN

RATHMEL NO.1, Jefferson, PA

Built 1927 Load: 40.8 t ADT: 3,579

SR3014

Fair

Over: BIG RUN

HEMLOCK VIEW, Jefferson, PA

Built 1985 Load: 40.8 t ADT: 208

SR1830

Fair

Over: MILL CREEK

SOUTH OF ALLENS MILLS, Jefferson, PA

Built 1952 Load: 40.8 t ADT: 889

SR 333-PA 333

Fair

Over: DELAWARE CREEK

THOMPSONTOWN, Juniata, PA

Built 1952 Load: 40.8 t ADT: 4,073

US 11

Fair

Over: COURT STREET

SCRANTON CTY OVR COURT ST, Lackawanna, PA

Built 1963 Load: 40.8 t ADT: 18,902

SR 0081 I-81 NB

Fair

Over: SR 8005

SCRANTON CITY OVER SR8005, Lackawanna, PA

Built 1966 Load: 40.8 t ADT: 31,673

SR 0590 TR 590

Fair

Over: SR 0084 I-84 EB & WB

JEFFERSON TWP OVER I-84, Lackawanna, PA

Built 1976 Load: 40.8 t ADT: 621

SR 3009

Fair

Over: GARDNER CREEK

RANSOM TWP 152 N SR 3002, Lackawanna, PA

Built 1988 Load: 40.8 t ADT: 238

PA 72; SR 0072

Fair

Over: LITTLE CONESTOGA CREEK

0.5 MI. N. OF PA 283, Lancaster, PA

Built 1927 Load: 40.8 t ADT: 18,505

PA 340;SR 0340

Fair

Over: TRIB RICHARDSON RUN

SPRINGGARDEN, Lancaster, PA

Built 1990 Load: 40.8 t ADT: 5,417

PA 625; SR 0625

Fair

Over: CONESTOGA RIVER

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

Built 1989 Load: 40.8 t ADT: 5,705

PA TPK (I-76)

Fair

Over: LR36002 SR1037

ELIZABETH TWP, Lancaster, PA

Built 1949 Load: 40.8 t ADT: 24,971

PA TPK (I-76)

Fair

Over: T-648

CLAY TWP, Lancaster, PA

Built 1949 Load: 40.8 t ADT: 24,971

T-948 SCHOOL LANE

Fair

Over: PEQUEA CREEK

0.9 MI SOUTH OF SR 340, Lancaster, PA

Built 1991 Load: 40.8 t ADT: 790

POOL ACCESS RD

Fair

Over: BIG RUN

500 S OF SR 65 PARK ENTR, Lawrence, PA

Built 1974 Load: 40.8 t ADT: 500

I-78 EB; SR 0078

Fair

Over: T-486 SUGAR RD.

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

Built 1969 Load: 40.8 t ADT: 14,202

I-78 WB; SR 0078

Fair

Over: T-486 SUGAR RD.

1 MI.N.W. FREDERICKSBURG, Lebanon, PA

Built 1969 Load: 40.8 t ADT: 14,222

I-81 NB;SR 0081

Fair

Over: T-338;TRIB SWATARA

2 MI.E. OF EXIT #80, Lebanon, PA

Built 1967 Load: 40.8 t ADT: 24,702

PA 934; SR 0934

Fair

Over: SWATARA CREEK

HARPERS TAVERN, Lebanon, PA

Built 1984 Load: 40.8 t ADT: 5,842

SR 2011

Fair

Over: Norfolk Southern RR

1 MI.S. MYERSTOWN, Lebanon, PA

Built 1955 Load: 40.8 t ADT: 1,223

SR 2019 N.Sheridan

Fair

Over: MILL CREEK

SHERIDAN, Lebanon, PA

Built 1931 Load: 40.8 t ADT: 2,811

SR 2021 Rod & Gun

Fair

Over: BRANCH OF MILLCREEK

MILLBACH, Lebanon, PA

Built 1935 Load: 40.8 t ADT: 1,134

T-601 JONESTOWN RD

Fair

Over: INDIANTOWN CREEK

IND.CRK.@ HARPER.TAVERN, Lebanon, PA

Built 1928 Load: 40.8 t ADT: 800

SR 2002(LR 39013)

Fair

Over: EAST PENN RAILROAD LLC

.3 MI. N. OF SR 2005, Lehigh, PA

Built 1963 Load: 40.8 t ADT: 10,035

SR 2025(LR 39005)

Fair

Over: INDIAN CREEK

.7 MI. N. OF SR 2029, Lehigh, PA

Built 1933 Load: 40.8 t ADT: 492

SR 2025(LR 39005)

Fair

Over: INDIAN CREEK

POWDER VAL.& BATMAN RD, Lehigh, PA

Built 1933 Load: 40.8 t ADT: 492

YEAKELS MILL ROAD

Fair

Over: PERKIOMEN CREEK

NORTH OF RTE. 29, Lehigh, PA

Built 1960 Load: 40.8 t ADT: 100

SR 0081 I-81 SB

Fair

Over: NRFLK STHRN RR & BL CRK

W HAZLETON BO .7M S TR 93, Luzerne, PA

Built 1967 Load: 40.8 t ADT: 18,609

SR 1036 CAVERTON R

Fair

Over: TOBY CREEK

KINGSTON TWP JCT TR 309, Luzerne, PA

Built 1976 Load: 40.8 t ADT: 5,131

LAUREL RUN RD

Fair

Over: RBMN RR

340 SE OF SR 2034, Luzerne, PA

Built 1987 Load: 40.8 t ADT: 2,225

SR 4016

Fair

Over: BRANCH HUNLOCK CREEK

HUNLOCK TP 1.2M W SR 4003, Luzerne, PA

Built 1961 Load: 40.8 t ADT: 2,858

SR0220(LR1073NBL)

Fair

Over: OVER SEDA-COG RR

1 MI W OF WILLIAMSPORT, Lycoming, PA

Built 1971 Load: 40.8 t ADT: 8,568

S.R. 864

Fair

Over: OVER MILL CREEK

2 MI E OF FARRAGUT, Lycoming, PA

Built 1953 Load: 40.8 t ADT: 929

S.R. 0973

Fair

Over: OVER TOMBS RUN

6 MI W OF SALLADASBURG, Lycoming, PA

Built 1921 Load: 40.8 t ADT: 180

SR 4010

Fair

Over: LARRYS CREEK

1 MI NE OF COGAN HOUSE, Lycoming, PA

Built 1933 Load: 40.8 t ADT: 107

LOYALSOCK TWP T587

Fair

Over: W MILL CREEK

2.2 MI. N OF MONTOURSVILL, Lycoming, PA

Built 1989 Load: 40.8 t ADT: 100

T-367

Fair

Over: QUENSHUKENY RUN

0.6 MI. N OF LINDEN, Lycoming, PA

Built 1968 Load: 40.8 t ADT: 100

SR 155-PA 155

Fair

Over: ALLEGHENY RIVER

PORT ALLEGANY, McKean, PA

Built 1953 Load: 40.8 t ADT: 889

SR 219-US 219

Fair

Over: SR 346 AND SR 4013

BRADFORD, McKean, PA

Built 1977 Load: 40.8 t ADT: 10,285

SR 1017

Fair

Over: KNAPP CREEK

DUKE CENTER, McKean, PA

Built 1977 Load: 40.8 t ADT: 651

SR 80 EB

Fair

Over: OVER ABANDON RR &SHNGO R

SHENANGO TOWNSHIP, Mercer, PA

Built 1966 Load: 40.8 t ADT: 13,514

SR 80 WB

Fair

Over: OVER ABANDON RR &SHNGO R

SHENANGO TOWNSHIP, Mercer, PA

Built 1966 Load: 40.8 t ADT: 13,487

SR 80 WB

Fair

Over: OVER SR 19 NB/SB PERRY

EAST LACKAWANNOCK TWP., Mercer, PA

Built 1965 Load: 40.8 t ADT: 12,975

SR 358 HADLEY ROAD

Fair

Over: OVER SANKEYS RUN

HEMPFIELD TOWNSHIP, Mercer, PA

Built 1953 Load: 40.8 t ADT: 5,707

SR 3015 OHIO ST

Fair

Over: OVER SHENANGO RIVER

BORO OF WHEATLAND, Mercer, PA

Built 1990 Load: 40.8 t ADT: 3,249

BRIDGE 2704 T-882

Fair

Over: OVER WOLF CREEK

MONTGOMERY DAM WOLF CREEK, Mercer, PA

Built 1985 Load: 40.8 t ADT: 48

SR 522-US 522

Fair

Over: JACKS CREEK

1 MI SW WAGNER, Mifflin, PA

Built 1927 Load: 40.8 t ADT: 3,792

SR 1005

Fair

Over: HONEY CREEK

REEDSVILLE, Mifflin, PA

Built 1921 Load: 40.8 t ADT: 5,997

Showing 8,051-8,100 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.