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

BRIDGE 1207 T-902

Poor

Over: OVER LITTLE SANDY CREEK

CRYSTAL SPRING MILL CK., Mercer, PA

Built 1965 Load: 28.1 t ADT: 21

BRIDGE 1703 LACOCK

Poor

Over: OVER SANDY CREEK

LACOCK ST. SANDY LAKE TWP, Mercer, PA

Built 1971 Load: 28.1 t ADT: 263

PA 115

Poor

Over: POHOPOCO CREEK

VILLAGE OF EFFORT, Monroe, PA

Built 1934 Load: 28.1 t ADT: 11,391

PA 314 (LR 171)

Poor

Over: SWIFTWATER CREEK

109 FT.NORTH OF LR168, Monroe, PA

Built 1956 Load: 28.1 t ADT: 3,917

SR 3023 (LR 949)

Poor

Over: APPENZELL CREEK

M. EASTON-BELMONT PIKE, Monroe, PA

Built 1954 Load: 28.1 t ADT: 2,233

LESSIG LANE T-410

Poor

Over: CHERRY CREEK

1 M.N OF CAMP BIG POCONO, Monroe, PA

Built 1940 Load: 28.1 t ADT: 38

PALM HILL ROAD

Poor

Over: PERKIOMEN CREEK

PALM 2804E02, Montgomery, PA

Built 1898 Load: 28.1 t ADT: 426

BETHLEHEM PIKE

Poor

Over: SANDY RUN

N.OF PA.TURNPIKE 3257F09, Montgomery, PA

Built 1931 Load: 28.1 t ADT: 7,888

SR 4005

Poor

Over: LITTLE BUFFALO CREEK

3MI N OF NEW BLOOMFIELD, Perry, PA

Built 1938 Load: 28.1 t ADT: 708

SR 0402 TR 402

Poor

Over: SHOHOLA CREEK

BLOOM GRV TWP 2.7M S I-84, Pike, PA

Built 1932 Load: 28.1 t ADT: 1,584

SR 4017(LR 53049)

Poor

Over: PINE CREEK

HONEYMOON TRAIL ROAD, Schuylkill, PA

Built 1930 Load: 28.1 t ADT: 152

FARMERS RD.

Poor

Over: DARK RUN

NORTHEAST OF RINGTOWN, Schuylkill, PA

Built 1960 Load: 28.1 t ADT: 1,000

MAIN ST

Poor

Over: SCHUYLKILL RIVER

MIDDLEPORT BORO MAIN ST., Schuylkill, PA

Built 1940 Load: 28.1 t ADT: 250

SR 3029

Poor

Over: MIDDLE CREEK

KIMMEL, Somerset, PA

Built 1937 Load: 28.1 t ADT: 1,719

MARKET STREET

Poor

Over: COXES CREEK

ROCKWOOD, Somerset, PA

Built 1922 Load: 28.1 t ADT: 25

SR 0011 TR 11

Poor

Over: TRIB TO SALT LICK CREEK

N MILFRD TP .6M N SR 1018, Susquehanna, PA

Built 1937 Load: 28.1 t ADT: 4,616

SR 62 FRNKN-OIL CT

Poor

Over: OVER UPPER TWO MILE RUN

SUGAR CREEK BOROUGH, Venango, PA

Built 1956 Load: 28.1 t ADT: 7,968

HALLS RUN ROAD

Poor

Over: OVER HALLS RUN

CRANBERRY TOWNSHIP, Venango, PA

Built 1953 Load: 28.1 t ADT: 100

SR 6 GRAND ARMY HY

Poor

Over: OVER DUTCHMANS RUN

MEAD TOWNSHIP, Warren, PA

Built 1948 Load: 28.1 t ADT: 6,433

SR 0018

Poor

Over: CHARTIERS CREEK

SOUTH FRANKLIN TOWNSHIP, Washington, PA

Built 1950 Load: 28.1 t ADT: 6,244

SR 0371 TR 371

Poor

Over: DYBERRY CREEK

LEBANON TWP JCT SR 1023, Wayne, PA

Built 1949 Load: 28.1 t ADT: 613

SR3018 CORTEZ RD

Poor

Over: BRANCH MIDDLE CREEK

S CANAAN TWP .7M N SR3019, Wayne, PA

Built 1935 Load: 28.1 t ADT: 450

OLD ROAD

Poor

Over: HOLLISTER CREEK

EAST END OF ROAD, Wayne, PA

Built 1963 Load: 28.1 t ADT: 30

SR 0092 TR 92

Poor

Over: FIELD BROOK

NICHOLSON TP .1M S SR1015, Wyoming, PA

Built 1927 Load: 28.1 t ADT: 1,812

SR 0092 TR 92

Poor

Over: HORTON CREEK

NICHOLSON BO 200N SR1017, Wyoming, PA

Built 1969 Load: 28.1 t ADT: 2,397

T-776; BURGS LANE

Poor

Over: US 30; SR 0030

1 MI W OF WRIGHTSVILLE, York, PA

Built 1970 Load: 28.1 t ADT: 328

PINE HILL ROAD

Poor

Over: TRIB. CONEWAGO CREEK

0.5 MI NE OF SALEM RUN RD, York, PA

Built 1920 Load: 28.1 t ADT: 250

T540; 5 FORKS RD

Poor

Over: DEER CREEK

2W STEWARTWN/DEER CREEK, York, PA

Built 1967 Load: 28.1 t ADT: 260

EAST TERRACE DRIVE

Poor

Over: LAKE CREEK

SAYLORSBURG, Monroe, PA

Built 1997 Load: 28.1 t ADT: 387

Haywood Road

Poor

Over: Branch of Brush Creek

North Huntingdon Twp, Westmoreland, PA

Built 1950 Load: 28.1 t ADT: 50

Old PA 51 (T-502)

Poor

Over: Jennings Run

Menallen TWP, Fayette, PA

Built 1935 Load: 28.1 t ADT: 100

PA 116; SR 0116

Poor

Over: TRIB TO MARSH CREEK

SW OF GETTYSBURG, Adams, PA

Built 1920 Load: 29.0 t ADT: 3,987

SR 4008

Poor

Over: CONEWAGO CREEK

1 MI N OF ARENDTSVILLE, Adams, PA

Built 1957 Load: 29.0 t ADT: 992

RAMP A

Poor

Over: ADJ. WEST CARSON STREET

Fort Pitt Bridge, Allegheny, PA

Built 1959 Load: 29.0 t ADT: 4,801

BEAVER VALLEY EXPY

Poor

Over: BUNKER HILL ROAD

1.5 MI N OF SR 3016, Beaver, PA

Built 1969 Load: 29.0 t ADT: 13,201

BLACKHAWK ROAD

Poor

Over: NORFOLK SOUTHERN RR

1700 W OF SR 0018, Beaver, PA

Built 1903 Load: 29.0 t ADT: 5,603

T-440 Skip Back Rd

Poor

Over: KEGG RUN

2.5 MI.SW.OF SCHELLSBURG, Bedford, PA

Built 1910 Load: 29.0 t ADT: 120

T-705 PINE HILL RD

Poor

Over: THREE SPRINGS RUN

1.4 MI.E. NEW ENTERPRISE, Bedford, PA

Built 1928 Load: 29.0 t ADT: 42

SR 3035(LR 06147)

Poor

Over: NORFOLK SOUTHERN RR

HILL ROAD, Berks, PA

Built 1932 Load: 29.0 t ADT: 134

BROAD AVENUE

Poor

Over: BURGOON RUN

BROAD AVE OVER BURGOON RU, Blair, PA

Built 1940 Load: 29.0 t ADT: 1,424

SR0528

Poor

Over: LAKE ARTHUR

EAST LAKE ARTHUR, Butler, PA

Built 1969 Load: 29.0 t ADT: 1,245

T-631 DALMAGRO RD

Poor

Over: TRIB. LITTLE BUFFALO RUN

250 FT FROM INT W/T595, Butler, PA

Built 1915 Load: 29.0 t ADT: 100

T-631 DALMAGRO RD

Poor

Over: LITTLE BUFFALO RUN

0.5 MI FROM INT W/T595, Butler, PA

Built 1913 Load: 29.0 t ADT: 100

SR 2002 (LR 13013)

Poor

Over: BORGER CREEK

LITTLE GAP RD @ 57 RD., Carbon, PA

Built 1930 Load: 29.0 t ADT: 2,183

STRICKERSVILLE RD.

Poor

Over: BIG ELK CREEK

NR.STRICKERSVILLE 53E12, Chester, PA

Built 1938 Load: 29.0 t ADT: 665

T-865 CAMP COFFMAN

Poor

Over: EAST SANDY CREEK

2.1 mi N int w/ SR 322, Clarion, PA

Built 1961 Load: 29.0 t ADT: 200

4TH STREET

Poor

Over: REISINGER RUN

500FT SOUTH OF MAPLE AVE, Clearfield, PA

Built 1955 Load: 29.0 t ADT: 200

SR 1037 LINCOLNVIL

Poor

Over: OVER LITTLE FEDERAL RUN

ATHENS TOWNSHIP, Crawford, PA

Built 1940 Load: 29.0 t ADT: 388

T-301 DRAKE HILL

Poor

Over: OVER E.BR.MUDDY CREEK

3.3 MI. NW. TOWNVILLE, Crawford, PA

Built 1957 Load: 29.0 t ADT: 100

GROVE STREET

Poor

Over: OVER MILL RUN

GROVE STREET MEADVILLE, Crawford, PA

Built 1912 Load: 29.0 t ADT: 1,000

Showing 21,951-22,000 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.