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 0029 TR 29

Fair

Over: PIKES CREEK

LEHMAN TWP 1 M S TR 118, Luzerne, PA

Built 1927 Load: 46.3 t ADT: 2,606

SR 0415 TR 415

Fair

Over: BR TOBYS CREEK

DALLAS BORO 212 N SR1045, Luzerne, PA

Built 1941 Load: 46.3 t ADT: 7,725

T-790

Fair

Over: LARRYS CREEK

0.8 MI WSW OF COGAN HOUSE, Lycoming, PA

Built 1992 Load: 46.3 t ADT: 42

T-513

Fair

Over: WOLF RUN

0.6 MI SE OF PENNSDALE, Lycoming, PA

Built 1974 Load: 46.3 t ADT: 75

T-322 TWP. BR. 343

Fair

Over: ANTES CREEK

0.9 MI. W. OF ANTES FORT, Lycoming, PA

Built 1989 Load: 46.3 t ADT: 108

SR 346-PA 346

Fair

Over: T398/WESTERN NY & PA RR

ELDRED BORO, McKean, PA

Built 1975 Load: 46.3 t ADT: 3,382

MAIN STREET

Fair

Over: E BR TUNUNGWANT CREEK

AT EGBERT LANE INTERSECT, McKean, PA

Built 1950 Load: 46.3 t ADT: 400

SR 62 S.MAIN ST.

Fair

Over: OVER SANDY CREEK TRIB

SANDY LAKE BOROUGH, Mercer, PA

Built 1932 Load: 46.3 t ADT: 4,636

SR 358 VERNON ROAD

Fair

Over: BIG RUN

WEST SALEM TOWNSHIP, Mercer, PA

Built 1931 Load: 46.3 t ADT: 1,971

SR 358 HADLEY ROAD

Fair

Over: OVER SHENANGO RIVER BR

OTTER CREEK TOWNSHIP, Mercer, PA

Built 1953 Load: 46.3 t ADT: 3,344

BRIDGE 416 T-668

Fair

Over: OVER MORRISON RUN

PIERSON RD.SANDY CREEK, Mercer, PA

Built 1962 Load: 46.3 t ADT: 22

SR 103-PA 103

Fair

Over: SUGAR RUN

2 MI SE NEWTON HAMILTON, Mifflin, PA

Built 1977 Load: 46.3 t ADT: 207

SR 3014

Fair

Over: JUNIATA RIVER

MCVEYTOWN, Mifflin, PA

Built 1985 Load: 46.3 t ADT: 2,506

T-343

Fair

Over: LONG HOLLOW RUN

100FT WEST OF SR 22, Mifflin, PA

Built 1926 Load: 46.3 t ADT: 150

PA 115(LR 45049)

Fair

Over: TOBYHANNA CREEK

0.8 MI.S.BLAKESLEE CORNER, Monroe, PA

Built 1985 Load: 46.3 t ADT: 9,989

PA 191(LR 169)

Fair

Over: BRODHEAD CK.OLD CHANNEL

AT PINEBROOK PARK, Monroe, PA

Built 1958 Load: 46.3 t ADT: 5,921

US 209(LR 164)

Fair

Over: POHOPOCO CREEK

1.4 MI.E.CARBON CO.LINE, Monroe, PA

Built 1966 Load: 46.3 t ADT: 5,284

OLD CANADENSIS RD.

Fair

Over: BRODHEAD CREEK

400 FT SW OF INT PA 447, Monroe, PA

Built 1956 Load: 46.3 t ADT: 150

GYPSY LANE(T711)

Fair

Over: SCHUYLKILL EXPRESSWAY

3MIE.KING PRUSSIA 3367E09, Montgomery, PA

Built 1950 Load: 46.3 t ADT: 1,393

SCHUYLKILL EXPWAY.

Fair

Over: MILL CREEK & MILL CR RD

1MI W.GLADWYNE EXT.3471J3, Montgomery, PA

Built 1951 Load: 46.3 t ADT: 85,964

SCHUYLKILL EXPY WB

Fair

Over: CITY AVE & RAMPS F & B

CITY AVE INTERCH 3479G09, Montgomery, PA

Built 1953 Load: 46.3 t ADT: 48,364

PA 309 BY-PASS

Fair

Over: CHURCH ROAD

ENFIELD@RT73 31A09/3369H2, Montgomery, PA

Built 1958 Load: 46.3 t ADT: 58,495

P-TOWN X-WAY (WB)

Fair

Over: COLLEGEVILLE ROAD

COLLEGEVILLE 19K13/3253D5, Montgomery, PA

Built 1976 Load: 46.3 t ADT: 30,988

HORSHAM RD

Fair

Over: PARK CREEK

HORSHAM VALLEY TWP 3146B8, Montgomery, PA

Built 1987 Load: 46.3 t ADT: 13,448

LORRAINE AVENUE

Fair

Over: SUNNYBROOK CREEK

.12 MI NE SR 73 3369-J3, Montgomery, PA

Built 1949 Load: 46.3 t ADT: 3,480

HOSENSACK ROAD

Fair

Over: HOSENSACK CREEK

1.25 Mi NE RT.29-2692-H10, Montgomery, PA

Built 1924 Load: 46.3 t ADT: 50

BAUS ROAD

Fair

Over: BRANCH MACOBY CREEK

T211/MACOBY CREEK 2805-B4, Montgomery, PA

Built 1936 Load: 46.3 t ADT: 150

OLD SCHOOL ROAD

Fair

Over: STONY RUN (HILLEGAS RUN)

T301/STONY RUN 2805-F6, Montgomery, PA

Built 1937 Load: 46.3 t ADT: 250

PA TPK (Ramp I)

Fair

Over: PA TPK (I-276)

MID COUNTY INTERCHANGE, Montgomery, PA

Built 1992 Load: 46.3 t ADT: 16,340

SR 3014 LR 46102

Fair

Over: PA TPK (I-276)

FT WASHINGTON STATE PARK, Montgomery, PA

Built 1954 Load: 46.3 t ADT: 7,598

I-80 EBL

Fair

Over: SR 54 & INDIAN CREEK

DANVILLE INTERCHANGE, Montour, PA

Built 1963 Load: 46.3 t ADT: 13,445

I-78 E.B.(LR 1045)

Fair

Over: SR 2012(LR 48010)

OVER ISLAND PK.RD., Northampton, PA

Built 1987 Load: 46.3 t ADT: 33,230

I-78 W.B.(LR 1045)

Fair

Over: SR 2012(LR 48010)

OVER ISLAND PK.RD., Northampton, PA

Built 1987 Load: 46.3 t ADT: 35,465

LITTLE CREEK ROAD

Fair

Over: LITTLE MARTINS CREEK

1 MILE NORTH OF PA 611, Northampton, PA

Built 1957 Load: 46.3 t ADT: 200

LITTLE CREEK ROAD

Fair

Over: LITTLE MARTINS CREEK

1 M. NORTH OF PA 611, Northampton, PA

Built 1917 Load: 46.3 t ADT: 200

RENTZHEIMER DR

Fair

Over: SILVER CREEK

SOUTH OF NEW YORK AVE, Northampton, PA

Built 1960 Load: 46.3 t ADT: 2,300

SR 2003

Fair

Over: OVER LOGAN RUN

2 MI EAST OF RIVERSIDE, Northumberland, PA

Built 1934 Load: 46.3 t ADT: 114

SR 3003

Fair

Over: OVER MOUSE RUN

2 MI SE OF RED CROSS, Northumberland, PA

Built 1922 Load: 46.3 t ADT: 1,127

CENTER STREET

Fair

Over: SHAMOKIN CREEK

1.5 MI NW OF SHAMOKIN, Northumberland, PA

Built 1990 Load: 46.3 t ADT: 800

PA 850; SR 0850

Fair

Over: LAUREL RUN

7 MI. N.W. KISTLER, Perry, PA

Built 1992 Load: 46.3 t ADT: 342

SR 1010

Fair

Over: WILDCAT CREEK

BERLEE, Perry, PA

Built 1950 Load: 46.3 t ADT: 117

CHERRY RD.

Fair

Over: HUNTERS RUN

AT MT. PATRICK, Perry, PA

Built 1920 Load: 46.3 t ADT: 129

FISHER ST.

Fair

Over: LITTLE JUNIATA CREEK

DUNCANNON BORO, Perry, PA

Built 1932 Load: 46.3 t ADT: 6,533

HOMINY RIDGE ROAD

Fair

Over: BIG BUFFALO CREEK

2 SW MARKLSVIL BUFFALO CR, Perry, PA

Built 1985 Load: 46.3 t ADT: 75

ON TSR 400

Fair

Over: CARD CREEK

1 MI W ROULETTE, Potter, PA

Built 1962 Load: 46.3 t ADT: 221

T-363 HERRINGTOWN

Fair

Over: ELEVEN MILE CREEK

0.12 MI FROM T-491, Potter, PA

Built 1940 Load: 46.3 t ADT: 70

PA 61 (LR 141)

Fair

Over: RATTLING RUN

PORT CLINTON, Schuylkill, PA

Built 1955 Load: 46.3 t ADT: 21,030

SR 3002(LR 53004)

Fair

Over: UPPER LITTLE SWATARA CR

VILLAGE OF R0EDERSVILLE, Schuylkill, PA

Built 1958 Load: 46.3 t ADT: 1,122

SR 522

Fair

Over: PENNS CREEK

BOROUGH OF SELINSGROVE, Snyder, PA

Built 1943 Load: 46.3 t ADT: 17,691

PA 56

Fair

Over: SEESE RUN

.25 MI.E.OF WINDBER, Somerset, PA

Built 1959 Load: 46.3 t ADT: 4,460

Showing 9,801-9,850 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.