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

SR0403

Fair

Over: FINDLEY RUN

CRAMER NO.1, Indiana, PA

Built 1942 Load: 39.9 t ADT: 3,468

SR3011

Fair

Over: BLACKLICK CREEK

CAMPBELLS MILL, Indiana, PA

Built 1953 Load: 39.9 t ADT: 231

SR4006

Fair

Over: GOOSE RUN

GOOSE RUN NO.2, Indiana, PA

Built 1939 Load: 39.9 t ADT: 593

SR0036

Fair

Over: LITTLE SANDY CREEK

COOLSPRING, Jefferson, PA

Built 1971 Load: 39.9 t ADT: 3,265

SR0310

Fair

Over: COLD SPRING RUN

ELK RUN NO.2, Jefferson, PA

Built 1960 Load: 39.9 t ADT: 3,920

SR3004

Fair

Over: PINE RUN

TIMBLIN BORO, Jefferson, PA

Built 1949 Load: 39.9 t ADT: 174

SR3011

Fair

Over: LITTLE SANDY CREEK

EAST BRANCH, Jefferson, PA

Built 1961 Load: 39.9 t ADT: 117

SR 22-US 22

Fair

Over: LOST CREEK

1 MI NE CUBA MILLS, Juniata, PA

Built 1973 Load: 39.9 t ADT: 9,339

SR 333-PA 333

Fair

Over: DELAWARE CREEK

THOMPSONTOWN BORO, Juniata, PA

Built 1928 Load: 39.9 t ADT: 4,048

SR 850-PA 850

Fair

Over: TUSCARORA CREEK

1 MI N HONEY GROVE, Juniata, PA

Built 1938 Load: 39.9 t ADT: 211

T-503 JERICHO RD

Fair

Over: LOST CREEK

AT S END OF JERICHO MILLS, Juniata, PA

Built 1930 Load: 39.9 t ADT: 100

T-371-BLACK LOG RD

Fair

Over: BLACK LOG CREEK

4.5 MI SW OF SR 4005, Juniata, PA

Built 1972 Load: 39.9 t ADT: 200

SR 4007 CRAIG ROAD

Fair

Over: KENNEDY CREEK

N ABNGTN TP 200 S TR 524, Lackawanna, PA

Built 1962 Load: 39.9 t ADT: 417

PA 23; SR 0023

Fair

Over: Little Conestoga Creek

E.HEMP.& LANC.TWP. Line, Lancaster, PA

Built 1988 Load: 39.9 t ADT: 11,631

PA 23; SR 0023

Fair

Over: Shirks Run

Blue Ball in EAST EARL TP, Lancaster, PA

Built 1921 Load: 39.9 t ADT: 8,050

US222Robert Fulton

Fair

Over: Conowingo Creek

1 Mi N of Wakefield, Lancaster, PA

Built 1977 Load: 39.9 t ADT: 1,176

PA896 GeorgetownRd

Fair

Over: Eliminated RR Tracks

NW. of Nine Points, Lancaster, PA

Built 1985 Load: 39.9 t ADT: 3,792

SR 3011

Fair

Over: CONOWINGO CREEK

DRUMORE CENTER, Lancaster, PA

Built 1977 Load: 39.9 t ADT: 137

SR 3030 SLACKWATER

Fair

Over: STEHMAN RUN

2 MI. N. OF SAFE HARBOR, Lancaster, PA

Built 1969 Load: 39.9 t ADT: 617

SR 4008 E.TOWN RD.

Fair

Over: BRUBAKER RUN

1 MI.S. OF MASTERSONVILLE, Lancaster, PA

Built 1960 Load: 39.9 t ADT: 2,021

SR 4026 old line r

Fair

Over: RIFE RUN

0.2 MI. N.W. OF MANHEIM, Lancaster, PA

Built 1966 Load: 39.9 t ADT: 2,233

FARMINGDALE RD

Fair

Over: LITTLE CONESTOGA CREEK

1400 WEST OF SR 4020, Lancaster, PA

Built 1962 Load: 39.9 t ADT: 400

FRYSVILLE RD

Fair

Over: MUDDY CREEK

AT T-647 INTERSECTION, Lancaster, PA

Built 1982 Load: 39.9 t ADT: 680

MASON-DIXON RD

Fair

Over: CONOWINGO CREEK

1.5 MI NW OF US 222, Lancaster, PA

Built 1967 Load: 39.9 t ADT: 75

KRANTZ MILL ROAD

Fair

Over: BIG BEAVER CREEK

1/2 MI WEST OF SR 222, Lancaster, PA

Built 1990 Load: 39.9 t ADT: 50

I-81; SR 0081

Fair

Over: INDIANTOWN RUN

1/4 MI.W. OF PA 934, Lebanon, PA

Built 1967 Load: 39.9 t ADT: 49,745

I-81;SR 0081

Fair

Over: AIRE RUN

2 MI.E. OF EXIT #85, Lebanon, PA

Built 1967 Load: 39.9 t ADT: 49,745

PA 419; Main St.

Fair

Over: MILL CREEK

3 MI.N. KLEINFELTERSVILLE, Lebanon, PA

Built 1981 Load: 39.9 t ADT: 3,019

SR2059(W.ROCK RD.)

Fair

Over: I-78 & PA 309

SUMMIT LAWN EXIT #59(19), Lehigh, PA

Built 1988 Load: 39.9 t ADT: 5,200

SR 1019 (LR 39040)

Fair

Over: JORDAN CREEK

INT.W/IRON BRIDGE RD., Lehigh, PA

Built 1957 Load: 39.9 t ADT: 12,756

SR4024 TALCOTT RD

Fair

Over: HUNTINGTON CREEK

FAIRMOUNT 144 E SR 4015, Luzerne, PA

Built 1969 Load: 39.9 t ADT: 196

PA ROUTE 239

Fair

Over: SUSQUEHANNA RIVER

1/2 MI SOUTH OF BORO, Luzerne, PA

Built 1994 Load: 39.9 t ADT: 4,000

SR-0180

Fair

Over: I 180 OVER SR 2036

HALLS STATION, Lycoming, PA

Built 1975 Load: 39.9 t ADT: 8,591

S.R. 0864

Fair

Over: OVER MILL CREEK

2.5 MI E OF FARRAGUT, Lycoming, PA

Built 1978 Load: 39.9 t ADT: 327

SR 2014

Fair

Over: OVER DOUGHERTYS RUN

CITY OF WILLIAMSPORT, Lycoming, PA

Built 1951 Load: 39.9 t ADT: 3,698

SR 6-US 6

Fair

Over: BUFFALO & PITTSBURGH RR

MT JEWETT BORO, McKean, PA

Built 1989 Load: 39.9 t ADT: 3,342

SR 219-US 219

Fair

Over: FOSTER BROOK

1 MI N BRADFORD, McKean, PA

Built 1977 Load: 39.9 t ADT: 3,008

SR 58 E MAIN EXT

Fair

Over: OVER SWAMP RUN BRANCH

PINE TOWNSHIP, Mercer, PA

Built 1955 Load: 39.9 t ADT: 3,500

SR 58 HARRISVILLE

Fair

Over: OVER SWAMP RUN

PINE TOWNSHIP, Mercer, PA

Built 1955 Load: 39.9 t ADT: 3,500

SR 62 MAIN ST

Fair

Over: OVER SANDY CREEK TRIB

SANDY LAKE TOWNSHIP, Mercer, PA

Built 1923 Load: 39.9 t ADT: 1,469

SR 80 EB

Fair

Over: W BR LTL NESHANNOCK CRK

SHENANGO TOWNSHIP, Mercer, PA

Built 1965 Load: 39.9 t ADT: 11,198

SR 358 HADLEY ROAD

Fair

Over: OVER LITTLE SHENANGO TR

PERRY TOWNSHIP, Mercer, PA

Built 1929 Load: 39.9 t ADT: 1,870

SR 4020 SHKEYVILLE

Fair

Over: OVER LITTLE SHENANGO R

SUGAR GROVE TOWNSHIP, Mercer, PA

Built 1966 Load: 39.9 t ADT: 830

BRIDGE 402 T-694

Fair

Over: OVER SANDY CREEK

BISHOP ROAD SANDY CREEK, Mercer, PA

Built 1985 Load: 39.9 t ADT: 57

SR 22-US 22

Fair

Over: CARTERS RUN

2 MI W NEWTON HAMILTON, Mifflin, PA

Built 1948 Load: 39.9 t ADT: 4,712

SR 22-US 22

Fair

Over: BEAVER DAM RUN

ATKINSON MILLS, Mifflin, PA

Built 1937 Load: 39.9 t ADT: 4,712

US 209(LR 164)

Fair

Over: TRIB. POHOPOCO CREEK

2 MI.E.OF KRESGEVILLE, Monroe, PA

Built 1973 Load: 39.9 t ADT: 9,609

PA 309 BY-PASS

Fair

Over: SANDY RUN / 3257-H10

FORT WASHINGTON 3257H10, Montgomery, PA

Built 1958 Load: 39.9 t ADT: 58,495

SR 1009

Fair

Over: OVER MUD CREEK

4MI W OF STRAWBERRY RIDGE, Montour, PA

Built 1962 Load: 39.9 t ADT: 164

SR 2007

Fair

Over: SR 2007 OVER I-80

2.5 MI E OF DANVILLE EXIT, Montour, PA

Built 1963 Load: 39.9 t ADT: 290

Showing 7,751-7,800 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.