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 0690 TR 690

Fair

Over: RATTLESNAKE CREEK

SPRINGBRK TP .6M E TR 502, Lackawanna, PA

Built 1957 Load: 29.9 t ADT: 1,162

SR 4026 WEST GROVE

Fair

Over: N.S. RR

CLARKS SUMMIT .5M S TR 6, Lackawanna, PA

Built 1984 Load: 29.9 t ADT: 7,100

US 222 NB; SR 0222

Fair

Over: T-676; N CHURCH ST

BROWNSTOWN, Lancaster, PA

Built 1970 Load: 29.9 t ADT: 29,368

222 NB

Fair

Over: 322 EB 322 WB

0.75 MI.S.E. OF EPHRATA, Lancaster, PA

Built 1970 Load: 29.9 t ADT: 21,653

ESBNSHDE RD; T-368

Fair

Over: SR 0300; PA 283

1.5 MI. N.W. OF SALUNGA, Lancaster, PA

Built 1968 Load: 29.9 t ADT: 7,606

PA 772; SR 0772

Fair

Over: PA 283; SR 0300

2.5 MI. N.E. OF MT. JOY, Lancaster, PA

Built 1968 Load: 29.9 t ADT: 8,606

T-444 PEACH BTM RD

Fair

Over: PETERS RUN

1500 FT NE OF T-445, Lancaster, PA

Built 1962 Load: 29.9 t ADT: 200

LR36001 SR 1045

Fair

Over: PA TPK (I-76)

DENVER BORO, Lancaster, PA

Built 1950 Load: 29.9 t ADT: 3,588

T808 MAPLE GRVE RD

Fair

Over: MILL CREEK

500 FT SOUTH OF T-537, Lancaster, PA

Built 1972 Load: 29.9 t ADT: 750

MARKET ST

Fair

Over: BR.LITTLE NESHANNOCK CR.

3/4 MI.EAST OF SR 0158, Lawrence, PA

Built 1962 Load: 29.9 t ADT: 3,195

HARLANSBURG ROAD

Fair

Over: BRANCH SLIPPERY ROCK CR.

1580 NORTH OF SR 1012, Lawrence, PA

Built 1961 Load: 29.9 t ADT: 169

UNION VALLEY RD

Fair

Over: MCKEE RUN

700 WEST OF SR 2001, Lawrence, PA

Built 1940 Load: 29.9 t ADT: 1,101

OAK STREET

Fair

Over: BECK CREEK

1.9SW LEB CITY/BECK CR., Lebanon, PA

Built 1937 Load: 29.9 t ADT: 900

SOUTH 3RD STREET

Fair

Over: HAZEL DYKE

150 FT OF ELM ST, Lebanon, PA

Built 1987 Load: 29.9 t ADT: 150

NORTH 5TH STREET

Fair

Over: QUITTAPAHILLA CREEK

250 NORTH OF WILLOW ST, Lebanon, PA

Built 1985 Load: 29.9 t ADT: 1,000

PA 143 (LR 285)

Fair

Over: TRIB. ONTELAUNEE CREEK

KINGS HIGHWAY, Lehigh, PA

Built 1926 Load: 29.9 t ADT: 1,892

PA 145 (LR 555)

Fair

Over: SUMNER AVE.

OVER SUMNER AVE., Lehigh, PA

Built 1960 Load: 29.9 t ADT: 58,746

PA 378(LR 297)

Fair

Over: LEHIGH RIV R.R. CITY STS

HILL TO HILL BRIDGE, Lehigh, PA

Built 1924 Load: 29.9 t ADT: 35,929

CENTER STREET

Fair

Over: COPLAY CREEK

SW COPLAY, Lehigh, PA

Built 1960 Load: 29.9 t ADT: 1,000

RIVERBEND ROAD

Fair

Over: LITTLE LEHIGH CREEK

E OF PA 29 N.OF EMMAUS, Lehigh, PA

Built 1954 Load: 29.9 t ADT: 500

7TH STREET

Fair

Over: TROUT CREEK

NORTH OF WEST CHURCH ST, Lehigh, PA

Built 1983 Load: 29.9 t ADT: 300

PA TPK (I-476)

Fair

Over: SR 4010 LR39091

WEST OF BALLIETTSVILLE, Lehigh, PA

Built 1955 Load: 29.9 t ADT: 30,563

I-80 EB

Fair

Over: HONEY HOLE & NESCOPECK

BUTLER TWP 1.6 M E TR 309, Luzerne, PA

Built 1966 Load: 29.9 t ADT: 10,916

SR 0081 I-81 SB

Fair

Over: W. FOOTHILLS DRIVE

BUTLER TWP 2 M N TR 93, Luzerne, PA

Built 1965 Load: 29.9 t ADT: 14,591

SR 0081 I-81 SB

Fair

Over: PLANE STREET

AVOCA BO .2M S LACK CO LN, Luzerne, PA

Built 1966 Load: 29.9 t ADT: 28,205

SR 0309 TR 309

Fair

Over: SR 2004; L&S RR; SUSQ R

PLAINS TWP OVR SUSQ RIVER, Luzerne, PA

Built 1976 Load: 29.9 t ADT: 66,572

SR 0315 TR 315

Fair

Over: MILL CREEK

PLAINS TWP .2 M N SR 2020, Luzerne, PA

Built 1930 Load: 29.9 t ADT: 16,498

SR 0940 TR 940

Fair

Over: SR 0080 I-80 EB & WB

WHITE HAVEN BOR OVER I-80, Luzerne, PA

Built 1966 Load: 29.9 t ADT: 4,646

SR 2042 NUANGLA RD

Fair

Over: WAPWALLOPEN CREEK

RICE TWP .4 M W SR 2045, Luzerne, PA

Built 1957 Load: 29.9 t ADT: 2,353

SR3008 RUCKLE HILL

Fair

Over: LITTLE WAPWALLOPEN CREEK

CONYNGHAM TWP 1M E TR 239, Luzerne, PA

Built 1975 Load: 29.9 t ADT: 312

SR 3018

Fair

Over: BLACK CREEK

BLACK CR TP 600 E SR3020, Luzerne, PA

Built 1967 Load: 29.9 t ADT: 1,459

PA TPK (I-476)

Fair

Over: MILL CREEK SR2036

1 MI EAST OF LAUREL RUN, Luzerne, PA

Built 1957 Load: 29.9 t ADT: 10,700

SR 14

Fair

Over: OVER TROUT RUN

VILLAGE OF TROUT RUN, Lycoming, PA

Built 1928 Load: 29.9 t ADT: 4,065

SR 1017

Fair

Over: OVER DOUGHERTY RUN

2 MI S OF TROUT RUN, Lycoming, PA

Built 1954 Load: 29.9 t ADT: 625

SR 0220

Fair

Over: OVER SEDA-COG RR

1 MI W OF WILLIAMSPORT, Lycoming, PA

Built 1971 Load: 29.9 t ADT: 8,963

S.R. 0864

Fair

Over: OVER LAUREL RUN

3 MI W OF PICTURE ROCKS, Lycoming, PA

Built 1953 Load: 29.9 t ADT: 276

S.R.3010

Fair

Over: OVER LARRYS CREEK

VILLAGE OF LARRYVILLE, Lycoming, PA

Built 1932 Load: 29.9 t ADT: 241

SR 80 EB

Fair

Over: OVER SR 718 SIEG HILL RD

SHENANGO TOWNSHIP, Mercer, PA

Built 1964 Load: 29.9 t ADT: 13,514

SR 80 WB

Fair

Over: OVER SR 718 SIEG HILL RD

SHENANGO TOWNSHIP, Mercer, PA

Built 1964 Load: 29.9 t ADT: 13,487

SR 1009 L.WILHELM

Fair

Over: OVER LAKE WILHELM

NEW VERNON TOWNSHIP, Mercer, PA

Built 1969 Load: 29.9 t ADT: 1,001

SR 2024 KILGORE RD

Fair

Over: OVER WOLF CREEK

WORTH TOWNSHIP, Mercer, PA

Built 1952 Load: 29.9 t ADT: 297

SR 4004 KINGSMAN R

Fair

Over: OVER BIG RUN

WEST SALEM TOWNSHIP, Mercer, PA

Built 1965 Load: 29.9 t ADT: 663

SR 4013

Fair

Over: STRODES RUN

1 MI NW STRODES MILLS, Mifflin, PA

Built 1956 Load: 29.9 t ADT: 960

I-80 EB (LR 1002)

Fair

Over: TWP. RD 498*

1.5 MI.E.OF PA.33, Monroe, PA

Built 1963 Load: 29.9 t ADT: 18,547

I-80 WB (LR 1002)

Fair

Over: TWP.RD 498

1.5 MI.E.OF PA.33, Monroe, PA

Built 1963 Load: 29.9 t ADT: 17,631

US 209(LR164 ALT.)

Fair

Over: SR2012(US 209 BUSINESS)

US209 OVER 209 BUS., Monroe, PA

Built 1963 Load: 29.9 t ADT: 17,788

PA 611(LR 168)

Fair

Over: RED RUN

NORTH END OF MT.POCONO, Monroe, PA

Built 1947 Load: 29.9 t ADT: 6,770

SUMNEYTOWN PIKE

Fair

Over: INDIAN CREEK/ 3030F04

VERNFIELD 15A02, Montgomery, PA

Built 1930 Load: 29.9 t ADT: 15,836

HUNTINGDON PIKE

Fair

Over: SEPTA

BETHAYRES 3371J01, Montgomery, PA

Built 1936 Load: 29.9 t ADT: 25,373

MID-COUNTY EXWY-NB

Fair

Over: BALLIGOMINGO RD/GULPH CR

WEST CONSHOHOCKEN 3367J09, Montgomery, PA

Built 1972 Load: 29.9 t ADT: 53,181

Showing 3,051-3,100 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.