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

SR 2027

Poor

Over: BUTTERMILK CREEK

FALLS TWP 521 E TR 307, Wyoming, PA

Built 1958 Load: 40.8 t ADT: 204

SPRING GARDEN STR.

Poor

Over: AMTRAK(NEC)

NR.EXPWAY.& 31 ST.3590A06, Philadelphia, PA

Built 1964 Load: 40.8 t ADT: 27,042

T-832 MILL STREET

Poor

Over: NORFOLK SOUTHERN RR

200 FT EAST OF SR 217, Westmoreland, PA

Built 1930 Load: 40.8 t ADT: 800

SKYLINE DRIVE

Poor

Over: LESHER RUN

EAST OF SHARTLESVILLE, Berks, PA

Built 1989 Load: 40.8 t ADT: 75

MARYLAND ROAD

Poor

Over: TRIB TO PENNYPACK CREEK

W OF EASTON RD 3258K05, Montgomery, PA

Built 1970 Load: 40.8 t ADT: 5,000

TPK RAMP AB I-70

Poor

Over: PA TPK (I-76)

BREEZEWOOD INTERCHANGE, Bedford, PA

Built 1969 Load: 41.7 t ADT: 13,591

T-301 Hazen Road

Poor

Over: EVITTS CREEK

2 MI.S.OF LAKE GORDON, Bedford, PA

Built 1935 Load: 41.7 t ADT: 60

RIVER ROAD

Poor

Over: BUCK CREEK

YARDLEY BOROUGH 33D11, Bucks, PA

Built 1932 Load: 41.7 t ADT: 4,200

BETH.PK;W.END BLVD

Poor

Over: BEAVER RUN

.3MI.TO LR 09118 13J04, Bucks, PA

Built 1936 Load: 41.7 t ADT: 30,549

SR 3005(LR 13032)

Poor

Over: MAHONING CREEK

COUNTRY CLUB ROAD, Carbon, PA

Built 1929 Load: 41.7 t ADT: 370

LAKE LYNN ROAD

Poor

Over: GRASSY RUN

SOUTH OF LAKE LYNN, Fayette, PA

Built 1949 Load: 41.7 t ADT: 300

SR 36 COL.DRAKE HY

Poor

Over: OVER HUNTER RUN

TIONESTA TOWNSHIP, Forest, PA

Built 1959 Load: 41.7 t ADT: 1,584

T340 JACOBS ROAD

Poor

Over: GREAT TROUGH CREEK

4 MI.NW.OF SALTILLO, Huntingdon, PA

Built 1992 Load: 41.7 t ADT: 5

US 0011

Poor

Over: SR 3013 NORTH MAIN AVE

SCRANTON CITY OVR SR 3013, Lackawanna, PA

Built 1963 Load: 41.7 t ADT: 18,902

SR 4004(LR 39071)

Poor

Over: HASSEN CREEK

HAASADAHL ROAD, Lehigh, PA

Built 1964 Load: 41.7 t ADT: 1,108

I-81 NB

Poor

Over: I-80 WB

BUTLER TWP OVER I-80 WB, Luzerne, PA

Built 1965 Load: 41.7 t ADT: 16,570

SR 1006

Poor

Over: KINGS RUN

1 MI SW CERES, McKean, PA

Built 1945 Load: 41.7 t ADT: 466

T615 CROOKERHOUSE

Poor

Over: W BR TUNUNGWANT CREEK

700 FT NW OF T-498, McKean, PA

Built 1910 Load: 41.7 t ADT: 150

OLD YORK ROAD

Poor

Over: SEPTA

ABINGTON;JENKINTWN.3370K4, Montgomery, PA

Built 1905 Load: 41.7 t ADT: 29,145

BRIDGE ROAD T-524

Poor

Over: DEEP CREEK

NE OF HEGINS T-524, Schuylkill, PA

Built 1922 Load: 41.7 t ADT: 150

GOLDEN BEAR DRIVE

Poor

Over: MAHANOY CREEK

W.OF MAH.CITY @ M.A.H.S., Schuylkill, PA

Built 1990 Load: 41.7 t ADT: 2,500

PARK PLACE ROAD

Poor

Over: N. MAHANOY CREEK

PARK PLACE RD N.OF M.C., Schuylkill, PA

Built 1961 Load: 41.7 t ADT: 1,300

SR 4015 NIOBE ROAD

Poor

Over: OVER MILL BROOK

FREEHOLD TOWNSHIP, Warren, PA

Built 1987 Load: 41.7 t ADT: 207

SR 1059

Poor

Over: PETERS CREEK

NOTTINGHAM & PETERS TWPS., Washington, PA

Built 1939 Load: 41.7 t ADT: 1,745

TWP RTE T-508

Poor

Over: SO. BRANCH CALKINS CREEK

BOYDS MILLS BRIDGE, Wayne, PA

Built 1954 Load: 41.7 t ADT: 145

OLNEY AVENUE

Poor

Over: SEPTA

.3MI W.RISING SUN 3481A05, Philadelphia, PA

Built 1929 Load: 41.7 t ADT: 10,913

19th Street

Poor

Over: Abolished Conrail

N.CALLOWHILL ST. 28E10, Philadelphia, PA

Built 1898 Load: 41.7 t ADT: 3,500

BETH.PK;W.END BLVD

Poor

Over: MORGAN CREEK

2MI.S QUAKERTOWN 13K06, Bucks, PA

Built 1936 Load: 42.6 t ADT: 35,087

NORTHBROOK ROAD

Poor

Over: W. BR. BRANDYWINE CREEK

N. OF RTE. 842 39J4, Chester, PA

Built 1953 Load: 42.6 t ADT: 2,064

SR4004

Poor

Over: TRIB TO LICKING CREEK

TYLERSBURG NO.2, Clarion, PA

Built 1934 Load: 42.6 t ADT: 763

T-580 GREENWD BR#1

Poor

Over: LITTLE GREEN CREEK

1 MI. NW OF ROHRSBURG, Columbia, PA

Built 1918 Load: 42.6 t ADT: 50

SR 18

Poor

Over: OVER CONNEAUT CREEK TRIB

SUMMERHILL TOWNSHIP, Crawford, PA

Built 1979 Load: 42.6 t ADT: 1,749

SR 4015

Poor

Over: ROARING RUN

NEW GRANADA, Fulton, PA

Built 1925 Load: 42.6 t ADT: 139

SR 333-PA 333

Poor

Over: DELAWARE CREEK

1 MI N THOMPSONTOWN, Juniata, PA

Built 1952 Load: 42.6 t ADT: 4,073

SR 2011

Poor

Over: LEHIGH RIVER

CLIFTON TP @ WAYNE CO LNE, Lackawanna, PA

Built 1966 Load: 42.6 t ADT: 175

SR 3015

Poor

Over: LACKAWANNA RIVER

MOOSIC-OLD FORGE BO LINE, Lackawanna, PA

Built 1949 Load: 42.6 t ADT: 6,392

SR3101 SCHWEITZ RD

Poor

Over: SR 0080 I-80

BUTLER TWP .7 M W SR 0081, Luzerne, PA

Built 1965 Load: 42.6 t ADT: 465

SR 2055

Poor

Over: SANDY RUN

FOSTER TWP 1.7M S SR 2046, Luzerne, PA

Built 1959 Load: 42.6 t ADT: 1,805

BRIDGE 1111 T-760

Poor

Over: OVER LITTLE SHENANGO

CARPENTER RD. NEW VERNON, Mercer, PA

Built 1961 Load: 42.6 t ADT: 76

T-478

Poor

Over: MARSH CREEK

2.3 MI. W OF STOKESDALE, Tioga, PA

Built 1935 Load: 42.6 t ADT: 100

BR.14 BORTREE T328

Poor

Over: WALLENPAUPACK CREEK

DREHER TWP .4MI N SR 191, Wayne, PA

Built 1957 Load: 42.6 t ADT: 70

STERLING SHORE RD.

Poor

Over: TRIB TO WALLENPAUPACK CK

250 S OF LEDGEDALE ROAD, Wayne, PA

Built 1970 Load: 42.6 t ADT: 100

SR 0292 TR 292

Poor

Over: MARSH CREEK

N MORELAND 1.4M NW SR2002, Wyoming, PA

Built 1955 Load: 42.6 t ADT: 625

MAPLE AVENUE

Poor

Over: N CHARLES STREET

051 Maple Ave Bridge, Allegheny, PA

Built 1929 Load: 43.5 t ADT: 400

HAWK MTN. ROAD

Poor

Over: TRIB TO PINE CREEK

1.4 MI WEST OF PA 143, Berks, PA

Built 1949 Load: 43.5 t ADT: 270

MONOCACY HILL RD

Poor

Over: MONOCACY CREEK

MONOCACY HILL BRIDGE, Berks, PA

Built 1977 Load: 43.5 t ADT: 200

OLD ROUTE 22

Poor

Over: MILL CREEK

1 MILE EAST OF BETHEL, Berks, PA

Built 1928 Load: 43.5 t ADT: 1,733

BEAVER RUN ROAD

Poor

Over: BEAVER CREEK

TINICUM TOWNSHIP 2698-H1, Bucks, PA

Built 1939 Load: 43.5 t ADT: 50

WATER WORKS ROAD

Poor

Over: ROCK RUN

COATESVILLE RESER. 28E1, Chester, PA

Built 1973 Load: 43.5 t ADT: 964

SR 1033 TEEPLEVILL

Poor

Over: OVER MUDDY CREEK

RICHMOND TOWNSHIP, Crawford, PA

Built 1950 Load: 43.5 t ADT: 180

Showing 22,951-23,000 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.