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

T-490 BARGAIN RD

Fair

Over: OVER SR 90 EB/WB

MCKEAN TOWNSHIP, Erie, PA

Built 1959 Load: 34.5 t ADT: 756

SR 90 WB

Fair

Over: OVER SR 97 UNION CITY RD

SUMMIT TOWNSHIP, Erie, PA

Built 1959 Load: 34.5 t ADT: 20,099

SR 90 EB

Fair

Over: OVER SR 426 FINDLY LK RD

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 34.5 t ADT: 8,790

SR 90 WB

Fair

Over: OVER SR 426 FINDLY LK RD

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 34.5 t ADT: 9,175

SR 90 EB

Fair

Over: OVER NS RR

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 34.5 t ADT: 8,790

SR 90 WB

Fair

Over: OVER NS RR

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 34.5 t ADT: 9,175

SR 3006 US 6N

Fair

Over: OVER CONNEAUT CREEK

SPRINGFIELD TOWNSHIP, Erie, PA

Built 1976 Load: 34.5 t ADT: 1,911

SR 3011 KNAPP ROAD

Fair

Over: OVER CONNEAUT CREEK W BR

CONNEAUT TOWNSHIP, Erie, PA

Built 1952 Load: 34.5 t ADT: 383

SR 0166

Fair

Over: LILLY RUN

LUZERNE TOWNSHIP, Fayette, PA

Built 1967 Load: 34.5 t ADT: 1,735

SR 0381

Fair

Over: CHAMPION CREEK

SALTLICK TOWNSHIP, Fayette, PA

Built 1942 Load: 34.5 t ADT: 2,720

SR 1020

Fair

Over: COVE RUN

NORTH UNION TOWNSHIP, Fayette, PA

Built 1956 Load: 34.5 t ADT: 5,820

SR 36 COL DRAKE

Fair

Over: OVER HUNTER RUN

TIONESTA TOWNSHIP, Forest, PA

Built 1959 Load: 34.5 t ADT: 1,584

T-396

Fair

Over: OVER ROSS RUN

KINGSLEY TOWNSHIP, Forest, PA

Built 1910 Load: 34.5 t ADT: 50

T-351 (HYKES RD)

Fair

Over: I-81; SR 0081

0.75 N. OF STATE LINE, Franklin, PA

Built 1960 Load: 34.5 t ADT: 3,075

SR 4018 (TWP RD)

Fair

Over: CLIPPINGER RUN

0.5 MI NW OF MOWERSVILLE, Franklin, PA

Built 1937 Load: 34.5 t ADT: 393

KUHN RD

Fair

Over: CONCOCHEAGUE CREEK

1.5NE UPTON/CONOCOCHEAGUE, Franklin, PA

Built 1959 Load: 34.5 t ADT: 400

IRON BRIDGE ROAD

Fair

Over: LEHMAN RUN

425 FT. NE OF SR 997, Franklin, PA

Built 1973 Load: 34.5 t ADT: 100

T-635 PARK ROAD

Fair

Over: CONODOGUINET CREEK

0.46 MI. E OF SR 997, Franklin, PA

Built 1962 Load: 34.5 t ADT: 100

I-70 WBL

Fair

Over: T340 FAIRVIEW ROAD

1.5 MILE WEST OF TR 731, Fulton, PA

Built 1962 Load: 34.5 t ADT: 6,085

PA 484

Fair

Over: I-70

OVER I-70, Fulton, PA

Built 1960 Load: 34.5 t ADT: 304

T494 PEACH ORCHARD

Fair

Over: TR.PATTERSON RUN

3 MI.W.OF KNOBSVILLE, Fulton, PA

Built 1948 Load: 34.5 t ADT: 764

SR 1007

Fair

Over: PATTERSON RUN

2 MILE S OF BREEZY POINT, Fulton, PA

Built 1948 Load: 34.5 t ADT: 291

SR 1012

Fair

Over: TR.LITTLE AUGHWICK CREEK

FORT LITTLETON, Fulton, PA

Built 1934 Load: 34.5 t ADT: 329

SR 3006

Fair

Over: I-70

FRANKLIN MILLS, Fulton, PA

Built 1959 Load: 34.5 t ADT: 105

SR 3007

Fair

Over: LITTLE TONOLOWAY CREEK

AMARANTH EXIT OF I-70, Fulton, PA

Built 1962 Load: 34.5 t ADT: 123

SR 3011

Fair

Over: LITTLE TONOLOWAY CREEK

.25 MI.E.OF WARFORDSBURG, Fulton, PA

Built 1954 Load: 34.5 t ADT: 216

SR 0079

Fair

Over: SR 0021

FRANKLIN TOWNSHIP, Greene, PA

Built 1972 Load: 34.5 t ADT: 10,138

SR 0079

Fair

Over: TOWNSHIP ROAD 552

WASHINGTON TOWNSHIP, Greene, PA

Built 1966 Load: 34.5 t ADT: 9,454

SR 2035

Fair

Over: BRANCH OF WHITELEY CREEK

GREENE TOWNSHIP, Greene, PA

Built 1917 Load: 34.5 t ADT: 203

PA 350

Fair

Over: TR WARRIORS MARK RUN

0.6 MILE NORTH OF PA 550, Huntingdon, PA

Built 1932 Load: 34.5 t ADT: 909

SR0080 WB

Fair

Over: NORTH FORK & WAT PLNT RD

NORTH FORK WB, Jefferson, PA

Built 1962 Load: 34.5 t ADT: 12,084

SR0080 EB

Fair

Over: SR1005

HORMTOWN NO.1, Jefferson, PA

Built 1964 Load: 34.5 t ADT: 10,252

SR 22-US 22

Fair

Over: TOWNSHIP ROAD 501

2 MI NE MIFFLINTOWN, Juniata, PA

Built 1973 Load: 34.5 t ADT: 9,339

SR 2013

Fair

Over: COCOLAMUS CREEK

COCOLAMUS, Juniata, PA

Built 1990 Load: 34.5 t ADT: 1,368

SR 3025

Fair

Over: GEORGE CREEK

2 MI N WATERLOO, Juniata, PA

Built 1953 Load: 34.5 t ADT: 263

SR 0081 I-81 SB

Fair

Over: SR 4019 EDELLA ROAD

S ABINGTON TP OVR SR 4019, Lackawanna, PA

Built 1959 Load: 34.5 t ADT: 12,138

SR 2020 DRINKER ST

Fair

Over: LITTLE ROARING BROOK

DUNMORE BORO .2 M E I-81, Lackawanna, PA

Built 1933 Load: 34.5 t ADT: 4,827

PA TPK (I-476)

Fair

Over: US6&11 SR0407 CP RR

CLARKS SUMMIT BOROUGH, Lackawanna, PA

Built 1955 Load: 34.5 t ADT: 6,895

US 222 NB; SR 0222

Fair

Over: PA 772; SR 0772

PA 772 AT BROWNSTOWN, Lancaster, PA

Built 1972 Load: 34.5 t ADT: 25,941

PA 722; Petersburg

Fair

Over: L.CONESTOGA CREEK

E.SIDE E.PETERSBURG, Lancaster, PA

Built 1983 Load: 34.5 t ADT: 5,982

PA 722; Oregon Rd

Fair

Over: Shirks Run

0.75 mi.W. of Oregon, Lancaster, PA

Built 1970 Load: 34.5 t ADT: 6,002

SR 1003

Fair

Over: US 222; SR 0222

3.75 MI.N. OF U.S. 30, Lancaster, PA

Built 1970 Load: 34.5 t ADT: 2,941

1010 Main St

Fair

Over: US 222; SR 0222

BROWNSTOWN BOROUGH, Lancaster, PA

Built 1972 Load: 34.5 t ADT: 1,611

SR 1035 Klienfelt

Fair

Over: MIDDLE CREEK

MIDDLECRK WILDLIFE REFUGE, Lancaster, PA

Built 1971 Load: 34.5 t ADT: 1,344

LR 1124 WB

Fair

Over: SR 1003 HORSESHOE ROAD

1 mi S of Leacock, Lancaster, PA

Built 1976 Load: 34.5 t

4005 Prospect Rd

Fair

Over: US 30; SR 0030

N OF MOUNTVILLE BORO, Lancaster, PA

Built 1970 Load: 34.5 t ADT: 7,094

T-596

Fair

Over: PA TPK (I-76)

CLAY TWP, Lancaster, PA

Built 1949 Load: 34.5 t ADT: 200

PA TPK (I-76)

Fair

Over: MIDDLE CREEK

I ML N.HOPELAND, Lancaster, PA

Built 1950 Load: 34.5 t ADT: 24,971

T-670

Fair

Over: PA TPK (I-76)

WEST COCALICO TWP, Lancaster, PA

Built 1949 Load: 34.5 t ADT: 200

PEPPERIDGE FARM EN

Fair

Over: PA TPK (I-76)

EAST COCALICO TWP, Lancaster, PA

Built 1949 Load: 34.5 t ADT: 49

Showing 5,801-5,850 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.