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 0924 TR 924

Fair

Over: SR 0081 I-81 NB & SB

HAZLE TWP OVER I81 EX 143, Luzerne, PA

Built 1967 Load: 31.8 t ADT: 13,072

SR 2019 OAK STREET

Fair

Over: SR 0081 INTERSTATE 81

PITTSTON TWP OVER I-81, Luzerne, PA

Built 1963 Load: 31.8 t ADT: 11,464

SR 3016 TANK RD

Fair

Over: SR 0080 I-80 EB

NESCOPECK TWP OVR I-80 EB, Luzerne, PA

Built 1965 Load: 31.8 t ADT: 131

SR 87

Fair

Over: OVER LITTLE BEAR CR.

4 MI N OF LOYALSOCKVILLE, Lycoming, PA

Built 1932 Load: 31.8 t ADT: 1,920

SR 220

Fair

Over: OVER WOLF RUN

1.5 MI W OF HUGHESVILLE, Lycoming, PA

Built 1927 Load: 31.8 t ADT: 6,846

SR 2061

Fair

Over: OVER GLADE RUN

1MI.S.W. OF MUNCY, Lycoming, PA

Built 1962 Load: 31.8 t ADT: 1,321

SR8002-15S TO 220S

Fair

Over: OVER (S-C)LYCO.VALLEY RR

WMSPT (RAMP C-SR 15), Lycoming, PA

Built 1974 Load: 31.8 t ADT: 2,622

SR 44

Fair

Over: OVER SR 220 & Rp 8028

EAST OF JERSEY SHORE BORO, Lycoming, PA

Built 1969 Load: 31.8 t ADT: 4,764

SR 346-PA 346

Fair

Over: WILLOW CREEK

10 MI W BRADFORD, McKean, PA

Built 1968 Load: 31.8 t ADT: 520

T-462 BOSS AVE

Fair

Over: BENNETT BROOK

300 FT SOUTH OF SR 4011, McKean, PA

Built 1955 Load: 31.8 t ADT: 100

SR 58 GROVE CITY

Fair

Over: OVER SR 80 EB/WB ZH CON

FINDLEY TOWNSHIP, Mercer, PA

Built 1965 Load: 31.8 t ADT: 4,870

I 376 WB

Fair

Over: SR 80 EB & WB

SHENANGO TOWNSHIP, Mercer, PA

Built 1966 Load: 31.8 t ADT: 6,839

SR 376 EB

Fair

Over: SR 80 EB & WB

SHENANGO TOWNSHIP, Mercer, PA

Built 1966 Load: 31.8 t ADT: 5,195

SR 79 SB

Fair

Over: OVER SR 1008 DISTRICT RD

LAKE TOWNSHIP, Mercer, PA

Built 1969 Load: 31.8 t ADT: 6,459

SR 3003 SHRN-BDFRD

Fair

Over: OVER TURKEY RUN

SHENANGO TOWNSHIP, Mercer, PA

Built 1966 Load: 31.8 t ADT: 997

SR 3007 PLSKI-MRCR

Fair

Over: OVER W BRANCH NESHANNOCK

WILMINGTON TOWNSHIP, Mercer, PA

Built 1962 Load: 31.8 t ADT: 658

BRIDGE 2113 T-774

Fair

Over: OVER YELLOW CREEK

S.FOSTER RD. JACKSON TWP., Mercer, PA

Built 1958 Load: 31.8 t ADT: 437

ON TSR 328

Fair

Over: SPRING RUN

1 MI NW MCVEYTOWN, Mifflin, PA

Built 1950 Load: 31.8 t ADT: 678

T-472

Fair

Over: LITTLE KISHACOQUILLAS CR

1000 FT N OF SR 0655, Mifflin, PA

Built 1975 Load: 31.8 t ADT: 671

PA 390(LR 324)

Fair

Over: BRODHEAD CREEK

CANADENSIS, Monroe, PA

Built 1940 Load: 31.8 t ADT: 3,060

PA 402 (LR 220)

Fair

Over: MARSHALLS CREEK

MARSHALLS CREEK, Monroe, PA

Built 1940 Load: 31.8 t ADT: 5,534

PA 611 (LR 168)

Fair

Over: SR 8012 (LR 1002 RAMP B)

OVER I-80 WB ON RAMP, Monroe, PA

Built 1963 Load: 31.8 t ADT: 15,775

SR 3005(LR 45003)

Fair

Over: POHOPOCO CREEK

GILBERT ROAD, Monroe, PA

Built 1948 Load: 31.8 t ADT: 1,080

MAIN STREET

Fair

Over: MINE RUN

SCHWENKSVILLE 3029F09, Montgomery, PA

Built 1928 Load: 31.8 t ADT: 9,235

GRAVEL PIKE

Fair

Over: PERKIOMEN CREEK/2917-D9

S.OF GREEN LANE 06K09, Montgomery, PA

Built 1967 Load: 31.8 t ADT: 7,311

SUMNEYTOWN PIKE

Fair

Over: BRANCH INDIAN CR/3030-F4

VERNFIELD 15C04, Montgomery, PA

Built 1930 Load: 31.8 t ADT: 15,836

CHURCH ROAD

Fair

Over: BRANCH WISSAHICKON CREEK

EAST OF PENNA 309 3369H02, Montgomery, PA

Built 1958 Load: 31.8 t ADT: 13,234

BETHLEHEM PIKE

Fair

Over: W. BR. NESHAMINY CREEK

S OF CO. LINE 3032J07, Montgomery, PA

Built 1934 Load: 31.8 t ADT: 42,557

EASTON RD 3258K4

Fair

Over: PA TURNPIKE RAMP AB

UPPER MORELAND 3254K04, Montgomery, PA

Built 1953 Load: 31.8 t ADT: 56,277

CHARLOTTE STREET

Fair

Over: SPROGELS RUN

POTTSGROVE 3026K08, Montgomery, PA

Built 1990 Load: 31.8 t ADT: 6,050

HOFFMANSVILLE ROAD

Fair

Over: SCHLEGEL RUN

SASSAMANSVILLE 2915H05, Montgomery, PA

Built 1933 Load: 31.8 t ADT: 3,453

CENTRAL AVENUE

Fair

Over: TACONY CREEK

AT CENTRAL AVE. 3481E01, Montgomery, PA

Built 1929 Load: 31.8 t ADT: 5,619

WASHINGTON LANE

Fair

Over: ROCK PARK CREEK

CHELTENHAM 3370G8, Montgomery, PA

Built 1932 Load: 31.8 t ADT: 19,062

SIMMONS ROAD

Fair

Over: SCIOTO CREEK

.9 Mi SW PA-29 3029-C4, Montgomery, PA

Built 1915 Load: 31.8 t ADT: 97

SWAMP PIKE

Fair

Over: HARTENSTINE CREEK

0.35 MI N OF SR 4021, Montgomery, PA

Built 1931 Load: 31.8 t ADT: 13,785

PA TPK (I-276)

Fair

Over: SR 2017

NEAR DRESHER, Montgomery, PA

Built 1954 Load: 31.8 t ADT: 97,693

SR 54

Fair

Over: OVER MAHONING CR.

1.5 MI N OF DANVILLE, Montour, PA

Built 1971 Load: 31.8 t ADT: 10,469

SR 4008

Fair

Over: CHILLISQUAQUE CREEK

4 MI N WASHINGTONVILLE, Montour, PA

Built 1957 Load: 31.8 t ADT: 222

US 22 (LR 773)

Fair

Over: BUSHKILL CREEK & DRIVE

PA 611 EXIT, Northampton, PA

Built 1954 Load: 31.8 t ADT: 40,076

PA 412 (LR 530)

Fair

Over: TRIB. TO SAUCON CREEK

MAIN STREET, Northampton, PA

Built 1922 Load: 31.8 t ADT: 13,025

SR 2001 (LR 48009)

Fair

Over: EAST BRANCH SAUCON CREEK

NEAR INT. WITH APPLE ST., Northampton, PA

Built 1934 Load: 31.8 t ADT: 859

SR2012(LR48010&13)

Fair

Over: LEH RIV STREETS NORF/SOU

GLENDON BRIDGE, Northampton, PA

Built 1969 Load: 31.8 t ADT: 6,932

SR 4003 (LR 48061)

Fair

Over: HOKENDAUQUA CREEK

1.7 MI.N.OF PA 329, Northampton, PA

Built 1949 Load: 31.8 t ADT: 3,303

SR 4014 (LR 48043)

Fair

Over: HOKENDAUQUA CREEK

W.SCENIC DRIVE, Northampton, PA

Built 1935 Load: 31.8 t ADT: 647

OLD FILETOWN ROAD

Fair

Over: BUSHKILL CREEK

SOUTH OF BELFAST, Northampton, PA

Built 1937 Load: 31.8 t ADT: 10

SR 0180 EB

Fair

Over: SR44 NORSOUTH WARRIOR RU

3 MI E OF WATSONTOWN, Northumberland, PA

Built 1971 Load: 31.8 t ADT: 7,799

S.R. 3010

Fair

Over: OVER SCHWABEN CREEK

VILLAGE OF REBUCK, Northumberland, PA

Built 1940 Load: 31.8 t ADT: 679

SR 1015

Fair

Over: US 22/322

0.2MI SE OF MILLERSTOWN, Perry, PA

Built 1966 Load: 31.8 t ADT: 4,296

SR 0006 TR 6

Fair

Over: WALLENPAUPACK CREEK

PALMYRA TWP @ JCT TR 590, Pike, PA

Built 1959 Load: 31.8 t ADT: 9,766

SR 0006 TR 6

Fair

Over: BLOOMING GROVE CREEK

LACKAWAXEN TP 2 M W TR739, Pike, PA

Built 1926 Load: 31.8 t ADT: 2,771

Showing 3,751-3,800 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.