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

BEVERLY BLVD

Fair

Over: NAYLORS RUN

150 FT W SHERBROOK BLVD, Delaware, PA

Built 1970 Load: 38.1 t ADT: 2,000

NARCISSA ROAD

Fair

Over: TRIB TO PLYMOUTH CREEK

200FT N HICKORY RD, Montgomery, PA

Built 1960 Load: 38.1 t ADT: 4,121

COMMUNITY DRIVE

Fair

Over: LUCKY RUN

1/2 MI SW OF DIVISION ST, Lackawanna, PA

Built 1983 Load: 38.1 t ADT: 50

ENTERPRISE STREET

Fair

Over: TRIB TO LACKAWANNA RIVER

860 FT NE OF BOULEVARD AV, Lackawanna, PA

Built 1983 Load: 38.1 t ADT: 400

HOLLOW RD

Fair

Over: TRIB LITTLE COCALICO CR

NEAR PA 897, Lancaster, PA

Built 1993 Load: 38.1 t ADT: 200

2nd Ave Ramp

Fair

Over: Krause Ln; West St.

NW Ramp to Hill to Hill, Lehigh, PA

Built 1921 Load: 38.1 t ADT: 50

HOMEVILLE RD

Fair

Over: UNION RR GRANT THMPS RUN

TS05 HOMEVILLE RD VIADT, Allegheny, PA

Built 1954 Load: 38.2 t ADT: 12,897

SR 2012

Fair

Over: PENNS CREEK

1 MI NW SPRING MILLS, Centre, PA

Built 1951 Load: 38.2 t ADT: 241

SR 4006 MDVLE.PIKE

Fair

Over: PATCHELL RUN

SUGAR CREEK BOROUGH, Venango, PA

Built 1959 Load: 38.2 t ADT: 1,923

SR 2020

Fair

Over: BANE CREEK

MORRIS & AMWELL TOWNSHIP, Washington, PA

Built 1941 Load: 38.2 t ADT: 1,231

CATHOLIC CHURCH BR

Fair

Over: PIGEON CREEK

250 NORTH OF SR 917, Washington, PA

Built 1941 Load: 38.2 t ADT: 510

FREEPORT ROAD

Fair

Over: WALKING TRAIL

NEAR HIGHLAND PARK BRIDGE, Allegheny, PA

Built 1927 Load: 38.6 t ADT: 8,142

T-344 (CO.BR.#.14)

Fair

Over: NORTH BR.TOWANDA CREEK

0.2 MI. S. GRANVILLE CNTR, Bradford, PA

Built 1894 Load: 38.6 t ADT: 75

LAYFIELD ROAD

Fair

Over: PERKIOMEN CREEK/2804-H10

PERKIOMEN HEIGHTS 02E12, Montgomery, PA

Built 1956 Load: 38.6 t ADT: 11,700

PA 191 (LR 297)

Fair

Over: MONOCACY CREEK

0.5 MI.N. OF US 22, Northampton, PA

Built 1958 Load: 38.6 t ADT: 13,531

RTE I84

Fair

Over: DELAWARE RIVER NEVERSIN

1 MI W I-84 Exit 1, Lancaster, PA

Built 1967 Load: 38.6 t ADT: 14,544

SR 0018

Fair

Over: Tenmile Creek

0.1 mi S from SR 0221, Washington, PA

Built 2013 Load: 38.6 t ADT: 2,920

Arcola Road

Fair

Over: Perkiomen Creek

1.4MI SE of SR 29 3253-G6, Montgomery, PA

Built 2016 Load: 38.6 t ADT: 9,682

SR 0058

Fair

Over: Clarion River

0.4 Mi N SR 368 Intercet., Clarion, PA

Built 2018 Load: 38.6 t ADT: 170

BREWERY LANE

Fair

Over: KELSEY CREEK

BORO OF WELLSBORO, Tioga, PA

Built 2018 Load: 38.6 t ADT: 100

Mill Creek Rd

Fair

Over: Cabin Run

2.8 Mi NW Pickle Hill Rd., Tioga, PA

Built 2020 Load: 38.6 t ADT: 5

SR 18

Fair

Over: OVER CONNEAUT CREEK TRIB

SUMMIT TOWNSHIP, Crawford, PA

Built 1925 Load: 38.9 t ADT: 1,682

SR 1017 POWYS OSD

Fair

Over: LYCOMING CREEK

HEPBURN & LEWIS TWP LINE, Lycoming, PA

Built 1954 Load: 38.9 t ADT: 1,169

ON FOREMAN STREET

Fair

Over: TUNUNGWANT CREEK

CITY OF BRADFORD, McKean, PA

Built 1963 Load: 38.9 t ADT: 6,788

PA 191 (LR297)

Fair

Over: MONOCACY CREEK

0.75 MI.N.OF US22, Northampton, PA

Built 1958 Load: 38.9 t ADT: 13,531

SR 2074

Fair

Over: I-83; SR 0083

1 MI.N.E. OF SHREWSBERRY, York, PA

Built 2012 Load: 38.9 t ADT: 3,239

SR 0844

Fair

Over: Chartiers Creek

0.3 mi W from SR 0018, Washington, PA

Built 2012 Load: 38.9 t ADT: 8,588

SR 1014 (LR 39037)

Fair

Over: COPLAY CREEK

LEHIGH ST AT SIXTH ST, Lehigh, PA

Built 2013 Load: 38.9 t ADT: 12,577

ROBERTS ROAD

Fair

Over: ALLOWAY CREEK

1.4NW LITTLESTOWN/ALLOWCK, Adams, PA

Built 2021 Load: 38.9 t ADT: 75

PA 116; SR 0116

Fair

Over: PLUM CREEK

W OF MCSHERRYSTOWN, Adams, PA

Built 1912 Load: 39.0 t ADT: 9,996

SR 1005

Fair

Over: MUD CREEK

3MI SE OF YORK SPRINGS, Adams, PA

Built 1932 Load: 39.0 t ADT: 1,077

SR 1015

Fair

Over: LITTLE CONEWAGO CREEK

2 MI SE NEW CHESTER, Adams, PA

Built 1940 Load: 39.0 t ADT: 1,832

SR 2035

Fair

Over: ROCK CREEK

2 MI.S. OF GETTYSBURG, Adams, PA

Built 1942 Load: 39.0 t ADT: 5,593

SR 3001;OLD HBG RD

Fair

Over: TRIB CONEWAGO CREEK

S. OF HEIDERSBURG, Adams, PA

Built 1985 Load: 39.0 t ADT: 1,473

SR 4014 (TWP. RD.)

Fair

Over: CONEWAGO CREEK

BEECHERSVILLE, Adams, PA

Built 1962 Load: 39.0 t ADT: 468

FLOHRS CHURCH RD

Fair

Over: MARSH CREEK

1.5 NE CSHTWN./MARSH CRK., Adams, PA

Built 1978 Load: 39.0 t ADT: 75

RT 0022 EB WB

Fair

Over: TWP RD 873 PARTRIDGE LN

OVER T 873, Allegheny, PA

Built 1964 Load: 39.0 t ADT: 21,280

PENN LINC PW

Fair

Over: SR50 WLE RR CHARTIERS CK

OVER SR50 RMPS.E&A RR CK, Allegheny, PA

Built 1950 Load: 39.0 t ADT: 130,875

East St Ramp Q

Fair

Over: I279 NB&SB HOV&RAMP-S

134 Ramp Q Bridge, Allegheny, PA

Built 1987 Load: 39.0 t ADT: 2,000

I-279 NB

Fair

Over: CAMP HORNE RD

I-279 NB OVER SR 4021, Allegheny, PA

Built 1988 Load: 39.0 t ADT: 21,528

GIBSONIA RD

Fair

Over: DEER CREEK

3/4 MI.NE OF SR 0028, Allegheny, PA

Built 1970 Load: 39.0 t ADT: 13,618

LITTLE DEER CRE RD

Fair

Over: SR 0028 NB -SB

1/4 MI. N.E. OF SR 0076, Allegheny, PA

Built 1970 Load: 39.0 t ADT: 3,260

MAYVIEW ROAD

Fair

Over: CHARTIERS CREEK

1.2 MI N OF BOYCE RD, Allegheny, PA

Built 1987 Load: 39.0 t ADT: 4,041

RAMP EP-W RD

Fair

Over: RAMP DP-W

OPA108 AP02 AIRPORT 5-2, Allegheny, PA

Built 1992 Load: 39.0 t ADT: 6,320

SCHENLEY DR

Fair

Over: CSX RAILROAD BOUNDARY ST

084 Schenley Dr Bridge, Allegheny, PA

Built 1896 Load: 39.0 t ADT: 14,000

MANSFIELD BR

Fair

Over: MON RV LR736 5TH A & RRS

MA14 MANSFIELD-DRAVOSBG, Allegheny, PA

Built 1951 Load: 39.0 t ADT: 26,416

SR2028

Fair

Over: TRIB TO MYERS RUN

WEST COCHRANS MILLS, Armstrong, PA

Built 1940 Load: 39.0 t ADT: 451

WOLF RUN RD

Fair

Over: WOLF RUN

300 N.W. OF SR 4041, Beaver, PA

Built 1966 Load: 39.0 t ADT: 548

GEORGETOWN LN

Fair

Over: TWO MILE RUN

101007 1MI W/TUSCARAWAS R, Beaver, PA

Built 1941 Load: 39.0 t ADT: 3,160

PA 915

Fair

Over: SANDY RUN

0.8 MILE SOUTH OF PA 26, Bedford, PA

Built 1959 Load: 39.0 t ADT: 826

Showing 7,351-7,400 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.