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

CHERRY RUN ROAD

Fair

Over: CHERRY RUN

350 FT NORTH OF SR 3002, Union, PA

Built 2007 Load: 43.5 t ADT: 15

SADDLE CREEK DRIVE

Fair

Over: JACOBY CREEK

NW OF MOUNT BETHEL, Northampton, PA

Built 2009 Load: 43.5 t ADT: 100

Hanover Street

Fair

Over: Swatara Creek

Union Deposit/Swatara Cr., Dauphin, PA

Built 2010 Load: 43.5 t ADT: 1,565

T-437

Fair

Over: TRIB LITTLE MUNCY CREEK

1.7 MI. SE OF CLARKSTOWN, Lycoming, PA

Built 2011 Load: 43.5 t ADT: 75

Zaenger Drive

Fair

Over: Squaw Run

Off Old Freeport Rd, Allegheny, PA

Built 2004 Load: 43.5 t ADT: 300

SR 0356

Fair

Over: Allegheny River NS RR

Freeport Bridge, Westmoreland, PA

Built 1962 Load: 43.5 t ADT: 14,010

McElhaney Road

Fair

Over: Crows Run

178 south of Blank Road, Beaver, PA

Built 2000 Load: 43.5 t ADT: 250

Fernwood Road

Fair

Over: Doe Run Stream 3688-J8

.7 M N of Friends Meeting, Chester, PA

Built 1990 Load: 43.5 t ADT: 300

T-362 WEST VALLEY

Fair

Over: W BR POTATO CREEK

1200 FT NORTH OF T-361, McKean, PA

Built 2016 Load: 43.5 t ADT: 30

CONARDS MILL ROAD

Fair

Over: W. BR. WHITE CLAY CREEK

NGALLOPING HILL RD3909E6, Chester, PA

Built 1990 Load: 43.5 t ADT: 500

Race St/I-676

Fair

Over: North 5th Street

Race St to Vine St, Philadelphia, PA

Built 1933 Load: 43.5 t ADT: 3

TROOP FARM ROAD

Fair

Over: HUNTER RUN

200 FT W PA 252, Delaware, PA

Built 2003 Load: 43.5 t ADT: 500

TANNERY DRIVE

Fair

Over: ABRAMS CREEK

500FT W KOP RD, Montgomery, PA

Built 1970 Load: 43.5 t ADT: 250

HUNT SEAT DRIVE

Fair

Over: WILLOW RUN

400 N GWYNEDD AV 3257-A2, Montgomery, PA

Built 1988 Load: 43.5 t ADT: 250

KINGS HIGHWAY

Fair

Over: TRIB TO FISHING CREEK

KINGS BRIDGE, Perry, PA

Built 2005 Load: 43.5 t ADT: 1,000

T-850

Fair

Over: Calebs Creek

Caleb Creek Road (T-850), Lycoming, PA

Built 2022 Load: 43.5 t ADT: 100

Basin Bridge Rd

Fair

Over: Reserve Basin

W. End Phila. Rsrve Basin, Philadelphia, PA

Built 1941 Load: 43.5 t ADT: 75

WILLOW CREEK ROAD

Fair

Over: WILLOW CREEK

BERKLEY, Berks, PA

Built 1930 Load: 43.7 t ADT: 100

HEMLOCK DRIVE

Fair

Over: HEMLOCK CREEK

NW OF HARTZELLS FERRY, Northampton, PA

Built 2006 Load: 43.7 t ADT: 150

SR 0019 NB

Fair

Over: SR 0519

4.8 mi N from SR 0070, Washington, PA

Built 2011 Load: 43.7 t ADT: 11,046

WHITEHALL ROAD

Fair

Over: Little Pike Run

West Pike Run Twp., Washington, PA

Built 2011 Load: 44.1 t ADT: 99

BROWNS CREEK RD

Fair

Over: BROWNS CREEK

MORRIS TOWNSHIP, Greene, PA

Built 2017 Load: 44.4 t ADT: 603

SR 28 SB

Fair

Over: RT 8 NB/SB RT 8 RMPS

ETNA INTERCHANGE SB, Allegheny, PA

Built 1960 Load: 44.5 t ADT: 37,663

PENN LINC PW

Fair

Over: BUSWY ARCH BELL POC RR

POC RR BELL&ARCH ST, Allegheny, PA

Built 1952 Load: 44.5 t ADT: 130,875

1039 NB

Fair

Over: SR279 SB RP SR 8041 RP D

Fort Duquesne Bridge, Allegheny, PA

Built 1968 Load: 44.5 t ADT: 17,144

I-376 EB

Fair

Over: MON RIVER & WARF 376 WB

Fort Pitt Bridge, Allegheny, PA

Built 1953 Load: 44.5 t ADT: 38,461

OLD PERRY HW

Fair

Over: ABANDONED RR RAVINE

108006 0.3 MI N OF RT 19, Allegheny, PA

Built 1940 Load: 44.5 t ADT: 4,214

RAMP CM RD

Fair

Over: RAMP EP-E

OPA111 AIRPORT 10-4 AP07, Allegheny, PA

Built 1992 Load: 44.5 t ADT: 4,344

FRANUM ST

Fair

Over: SAW MILL RUN CREEK

036 Franum St (Ensign Ave, Allegheny, PA

Built 1981 Load: 44.5 t ADT: 125

MEADOW ST

Fair

Over: NEGLEY RUN BLVD

057 MEADOW STREET BRIDGE, Allegheny, PA

Built 1914 Load: 44.5 t ADT: 1,850

TROY HILL RD

Fair

Over: HILLSIDE

114 TROY HILL ROAD, Allegheny, PA

Built 1965 Load: 44.5 t ADT: 1,000

FERN HOLLOW RD

Fair

Over: LITTLE SEWICKLEY CREEK

SL03 LITTLE SEW CRK # 3, Allegheny, PA

Built 1947 Load: 44.5 t ADT: 728

RANKIN RD

Fair

Over: LONG RUN STREAM

477001 RANKIN RD BRIDGE, Allegheny, PA

Built 1981 Load: 44.5 t ADT: 1,500

BRANDT SCHOOL RD

Fair

Over: FISH RUN

FH01 FISH RUN NO. 1, Allegheny, PA

Built 1982 Load: 44.5 t ADT: 3,549

RAMP A

Fair

Over: RAMP B-3

RP.A OVER RP.B3-GLENFIELD, Allegheny, PA

Built 1975 Load: 44.5 t ADT: 5,049

RAMP E

Fair

Over: BANKSVILLE RD

RAMP TO SR 0019 NB, Allegheny, PA

Built 1959 Load: 44.5 t ADT: 1,004

SUNFLOWER RD

Fair

Over: BRUSH CREEK

100S.W.OF TURNPIKE, Beaver, PA

Built 1926 Load: 44.5 t ADT: 5,807

PA TPK ( I-376)

Fair

Over: SR 4001 NFS RR

BIG BEAVER BOROUGH, Beaver, PA

Built 1992 Load: 44.5 t ADT: 9,871

WILLOWMERE PARK RD

Fair

Over: BRUSH CREEK

004048 300 OFF PA RT 68, Beaver, PA

Built 1987 Load: 44.5 t ADT: 140

US 220

Fair

Over: EVITTS CREEK

0.8 MILE SOUTH OF SR 3011, Bedford, PA

Built 1964 Load: 44.5 t ADT: 5,566

PA 326

Fair

Over: SWEET ROOT CREEK

143 FEET SOUTH OF SR 2002, Bedford, PA

Built 1961 Load: 44.5 t ADT: 234

SR 2011

Fair

Over: E BR SIDELING HILL CREEK

.5 MI.N.OF ROBINSONVILLE, Bedford, PA

Built 1929 Load: 44.5 t ADT: 111

SR 4009 (BUS 220)

Fair

Over: RAYSTOWN BR JUNIATA RIV

BEDFORD, Bedford, PA

Built 1997 Load: 44.5 t ADT: 5,940

SR 4017

Fair

Over: ADAMS RUN

2 MI.W.OF CESSNA, Bedford, PA

Built 1965 Load: 44.5 t ADT: 294

SR 78 (LR 141)

Fair

Over: MILL CREEK

2 MI.E.OF SHARTLESVILLE, Berks, PA

Built 1956 Load: 44.5 t ADT: 32,446

I-78 (LR 285SPUR)

Fair

Over: PA 143;MAIDEN CREEK

LENHARTSVILLE INTERCHANGE, Berks, PA

Built 1955 Load: 44.5 t ADT: 55,932

SR 100(LR 284)

Fair

Over: TRIB.PERKIOMEN CREEK

VILLAGE OF CLAYTON, Berks, PA

Built 1951 Load: 44.5 t ADT: 12,746

SR 1010 (LR06118)

Fair

Over: NORFOLK SOUTHERN RR

FLEETWOOD-LYONS ROAD, Berks, PA

Built 1962 Load: 44.5 t ADT: 10,918

SR 2012 (LR 06208)

Fair

Over: NORFOLK/SOUTHERN RR

WALNUT ST EB ONE-WAY, Berks, PA

Built 1926 Load: 44.5 t ADT: 5,881

SR 3009 (LR 660)

Fair

Over: WYOMISSING CREEK

WYOMISSING ROAD, Berks, PA

Built 1925 Load: 44.5 t ADT: 1,359

Showing 9,051-9,100 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.