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

LR1098 - RAMP B

Fair

Over: T-454(COUNTRY CLUB RD.)

RAMP 22 EB TO PA 33 SB, Northampton, PA

Built 1972 Load: 39.0 t ADT: 7,809

SR 1025

Fair

Over: OVER SR 147

1 MI S OF MILTON, Northumberland, PA

Built 1971 Load: 39.0 t ADT: 769

SR 2034

Fair

Over: SHAMOKIN CREEK

1 MI SE OF KULPMONT, Northumberland, PA

Built 1950 Load: 39.0 t ADT: 4,011

SR 3006

Fair

Over: SHERMANS CREEK

1 MI SOUTH OF BLAIN, Perry, PA

Built 1959 Load: 39.0 t ADT: 365

SR4001 LEDGEDLE RD

Fair

Over: WALLENPAUPACK CREEK

GREENE TWP 150 S SR 3006, Pike, PA

Built 1975 Load: 39.0 t ADT: 2,680

SR 44-PA 44

Fair

Over: MILL CREEK

SWEDEN VALLEY, Potter, PA

Built 1928 Load: 39.0 t ADT: 939

ON TSR 416

Fair

Over: KETTLE CREEK

CROSS FORK, Potter, PA

Built 1988 Load: 39.0 t ADT: 737

PA 54 (LR 161)

Fair

Over: MAHANOY CREEK

0.5 MI E. OF ASHLAND, Schuylkill, PA

Built 1984 Load: 39.0 t ADT: 3,207

INDIAN RUN RD

Fair

Over: INDIAN RUN

SOUTH OF RENE MONT, Schuylkill, PA

Built 1960 Load: 39.0 t ADT: 100

T474 GAP SCHOOL RD

Fair

Over: RAUSCH CREEK

T-474 GAP SCHOOL ROAD, Schuylkill, PA

Built 1967 Load: 39.0 t ADT: 50

NICHOLS ST.

Fair

Over: PROGRESS AVE.

NICHOLS ST.POTTSVILLE, Schuylkill, PA

Built 1991 Load: 39.0 t ADT: 7,210

CEDAR STREET

Fair

Over: LITTLE SCHUYLKILL RIVER

CEDAR ST.TAMAQUA PA., Schuylkill, PA

Built 1937 Load: 39.0 t ADT: 3,000

I-81 RAMP

Fair

Over: ALTAMONT BOULEVARD

FRACKVILLE INTERCHANGE, Schuylkill, PA

Built 1967 Load: 39.0 t ADT: 1,533

11/15w/STR.MTD.SGN

Fair

Over: NEW SR 11/15 OVER SR 522

1 MI N OF SELINSGROVE, Snyder, PA

Built 1976 Load: 39.0 t ADT: 10,072

SR 35

Fair

Over: OVER PENNS CREEK

1 MI S OF SELINSGROVE, Snyder, PA

Built 1977 Load: 39.0 t ADT: 3,682

SR 2047

Fair

Over: FLAUGHERTY CREEK

MEYERSDALE BOROUGH, Somerset, PA

Built 1914 Load: 39.0 t ADT: 4,886

PA 281

Fair

Over: LICKING RUN

URSINA, Somerset, PA

Built 1953 Load: 39.0 t ADT: 1,738

T-387 COUNTY BR#5

Fair

Over: LITTLE LOYALSOCK CREEK

3.4 MI. W. CHERRY MILLS, Sullivan, PA

Built 1900 Load: 39.0 t ADT: 11

SR 0092 TR 92

Fair

Over: BELL CREEK

GIBSON TWP .1 M N SR 2071, Susquehanna, PA

Built 1951 Load: 39.0 t ADT: 1,569

SR 1005

Fair

Over: STARRUCCA CREEK

THOMPSON BO .1 M S TR 171, Susquehanna, PA

Built 1934 Load: 39.0 t ADT: 215

SR 0015

Fair

Over: OVER TIOGA RIVER

COVINGTON TIOGA RIVER BR., Tioga, PA

Built 1989 Load: 39.0 t ADT: 3,955

SR 2022

Fair

Over: OVER CANOE CAMP CREEK

2.25 MI E OF COVINGTON, Tioga, PA

Built 1953 Load: 39.0 t ADT: 694

REESE HILL ROAD

Fair

Over: CATLIN HOLLOW CR

3 MI NE OF WELLSBORO, Tioga, PA

Built 1955 Load: 39.0 t ADT: 197

T-684 MIDDLEBURY

Fair

Over: NORTH RUN

0.9 MI NW OF HOLLIDAY, Tioga, PA

Built 1947 Load: 39.0 t ADT: 200

TABER ST.BLOSSBURG

Fair

Over: JOHNSON CREEK

BORO OF BLOSSBURG, Tioga, PA

Built 1905 Load: 39.0 t ADT: 300

SR 62 RIVERSIDE DR

Fair

Over: OVER SAGE RUN

CRANBERRY TOWNSHIP, Venango, PA

Built 1942 Load: 39.0 t ADT: 3,539

SR 308

Fair

Over: OVER SR 80 EB/WB

CLINTON TOWNSHIP, Venango, PA

Built 1965 Load: 39.0 t ADT: 1,980

SLEEPY HOLLOW DR.

Fair

Over: BRANCH OF SUGAR CREEK

SUGAR CREEK BOROUGH, Venango, PA

Built 1945 Load: 39.0 t ADT: 120

SR 69 JCKSN.RUN RD

Fair

Over: OVER MUD RUN

CONEWANGO TOWNSHIP, Warren, PA

Built 1952 Load: 39.0 t ADT: 2,144

SR 3018

Fair

Over: BR OF MID WHEELING CREEK

WEST FINLEY TOWNSHIP, Washington, PA

Built 1961 Load: 39.0 t ADT: 139

SR 0006 TR 6

Fair

Over: TRIB VAN AUKEN CREEK

CANAAN TWP .7 M W TR 170, Wayne, PA

Built 1953 Load: 39.0 t ADT: 7,299

SR 0084 I-84 WB

Fair

Over: SR 0191 TR 191

STERLING TWP OVER TR 191, Wayne, PA

Built 1969 Load: 39.0 t ADT: 7,063

SR 0652 TR 652

Fair

Over: DELAWARE RIVER

DAMASCUS TWP @ JCT SR1017, Wayne, PA

Built 1954 Load: 39.0 t ADT: 2,565

SR 1027 WESCOTT RD

Fair

Over: NORTH BR CALKINS CREEK

DAMASCUS TWP .3M N SR1025, Wayne, PA

Built 1925 Load: 39.0 t ADT: 181

DAVIS ROAD

Fair

Over: VAN AUKEN CREEK

STEENE ADJACENT TO RT. 6, Wayne, PA

Built 1930 Load: 39.0 t ADT: 50

SR 0030

Fair

Over: 0119 R/R JACKS RN ST.

SOUTHWEST GREENSBURG BORO, Westmoreland, PA

Built 1959 Load: 39.0 t ADT: 37,386

SR 0217

Fair

Over: BRANCH OF MCGEE RUN

DERRY TOWNSHIP, Westmoreland, PA

Built 1968 Load: 39.0 t ADT: 4,207

SR 0993

Fair

Over: BRUSH CREEK

NORTH HUNTINGDON TOWNSHIP, Westmoreland, PA

Built 1937 Load: 39.0 t ADT: 4,135

SR 4027

Fair

Over: COAL RUN

NORTH HUNTINGDON TOWNSHIP, Westmoreland, PA

Built 1971 Load: 39.0 t ADT: 1,732

SR 3016

Fair

Over: Tpk 66 MP G003.05 GB-110

HEMPFIELD TWP, Westmoreland, PA

Built 1991 Load: 39.0 t ADT: 2,198

PA TPK RAMPS B&C

Fair

Over: PA TPK (I-76)

IRWIN INTERCHANGE, Westmoreland, PA

Built 1952 Load: 39.0 t ADT: 10,020

SR 2054 Main st.

Fair

Over: PINE RUN

FELTON BORO, York, PA

Built 1967 Load: 39.0 t ADT: 991

BLETTNER AVENUE

Fair

Over: PLUM CREEK

0.2S HANOVER/PLUM CREEK, York, PA

Built 1975 Load: 39.0 t ADT: 2,500

SALEM CHURCH ROAD

Fair

Over: BEAVER CREEK

BVER CR.L.WNDSR/CHNCFRD, York, PA

Built 1985 Load: 39.0 t ADT: 400

BULL ROAD

Fair

Over: BEAVER CREEK

.8NE G.P.S.P./BEAVER CR, York, PA

Built 1956 Load: 39.0 t ADT: 278

SCHUYLKILL EXPWAY.

Fair

Over: SWEETBRIAR ROAD

NR.GIRARD AVE.INCH3589J04, Philadelphia, PA

Built 1956 Load: 39.0 t ADT: 133,077

INTERSTATE 95 N.B.

Fair

Over: RACE STREET&RAMP NFN

NR.B FRANKLIN BRG.3590H08, Philadelphia, PA

Built 1975 Load: 39.0 t ADT: 80,788

GRANT AVENUE

Fair

Over: WOODEN BRIDGE RUN

500FT.ASHTON RD 3372J09, Philadelphia, PA

Built 1964 Load: 39.0 t ADT: 27,940

WOODHAVEN ROAD

Fair

Over: BYBERRY CREEK

.3MI.WEST OF US-1 3372K03, Philadelphia, PA

Built 1964 Load: 39.0 t ADT: 32,846

WAYNE AVENUE

Fair

Over: CSX (LOW FREIGHT LINE)

NEAR ROBERTS AVE. 3480E07, Philadelphia, PA

Built 1914 Load: 39.0 t ADT: 11,871

Showing 7,551-7,600 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.