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

T-549 Bowser Road

Good

Over: DUNNING CREEK

1 MI.E.OF RYOT, Bedford, PA

Built 1867 Load: 29.0 t ADT: 60

COVERED BRIDGE RD

Good

Over: MAIDEN CREEK

DREIBELBIS STATION BRIDGE, Berks, PA

Built 1869 Load: 29.0 t ADT: 206

SCHULER ROAD

Good

Over: TRIB.TO MOSELEM CREEK

200 FT. S.OF RT.222, Berks, PA

Built 1970 Load: 29.0 t ADT: 200

YORK ROAD

Good

Over: LITTLE NESHAMINY CR & RD

.7MI.TO LR-09046 29G13, Bucks, PA

Built 1967 Load: 29.0 t ADT: 17,581

PARK ROAD(T307)

Good

Over: US 1 BY-PASS

.5MI.SOUTH RT 272 50J09, Chester, PA

Built 1968 Load: 29.0 t ADT: 668

PA 283; SR 0300

Good

Over: SWATARA CR;RR:T-496

2 MI. N. OF MIDDLETOWN, Dauphin, PA

Built 1971 Load: 29.0 t ADT: 23,416

PA 441; SR 0441

Good

Over: SR 8020 RAMP A

2 MI. N.E. HIGHSPIRE, Dauphin, PA

Built 1976 Load: 29.0 t ADT: 4,370

SR 97 UNION CITY

Good

Over: OVER LEBOEUF CREEK BR

SUMMIT TOWNSHIP, Erie, PA

Built 1964 Load: 29.0 t ADT: 5,564

T-646 W. CREEK RD

Good

Over: PAXTON RUN

1.22 MI. SW OF SR 696, Franklin, PA

Built 1978 Load: 29.0 t ADT: 200

SR 3023

Good

Over: LITTLE BRUSH CREEK

CRYSTAL SPRING, Fulton, PA

Built 1963 Load: 29.0 t ADT: 610

SR 2005

Good

Over: SIDELING HILL CREEK

.5 MI.W.OF MADDENSVILLE, Huntingdon, PA

Built 1982 Load: 29.0 t ADT: 396

SR 0376 WB

Good

Over: MERCER ROAD

1/2 MI. NORTH OF SR 0208, Lawrence, PA

Built 1973 Load: 29.0 t ADT: 6,121

SR 2018(LR 39026)

Good

Over: TRIB. TO SWABIA CREEK

INDIAN CREEK ROAD, Lehigh, PA

Built 1962 Load: 29.0 t ADT: 1,226

SR 1015 NEW LBANON

Good

Over: OVER NORTH DEER CREEK

FRENCH CREEK TOWNSHIP, Mercer, PA

Built 1996 Load: 29.0 t ADT: 240

TOWNSHIP LINE ROAD

Good

Over: JENKINTOWN CREEK

APP-42-115 3371C08, Montgomery, PA

Built 1982 Load: 29.0 t ADT: 15,526

PA 946(LR 563)

Good

Over: SPRING CREEK

2 M. N.OF PA 191 INTERS., Northampton, PA

Built 1977 Load: 29.0 t ADT: 4,833

T-405 (Creek Road)

Good

Over: MAHANOY CREEK

EAST OF DORNSIFE, Northumberland, PA

Built 1975 Load: 29.0 t ADT: 75

SR 1010

Good

Over: GENESEE RIVER

GENESEE, Potter, PA

Built 1938 Load: 29.0 t ADT: 1,046

SR 2005

Good

Over: TAN CREEK

3 MI N OF BLOSSBURG, Tioga, PA

Built 1971 Load: 29.0 t ADT: 4,024

SR 15 SOUTH BOUND

Good

Over: TIOGA RIVER

1.5 MI. S. OF MANSFIELD, Tioga, PA

Built 1985 Load: 29.0 t ADT: 5,697

SR 4013

Good

Over: ROBB RUN

MCDONALD BOROUGH, Washington, PA

Built 1993 Load: 29.0 t ADT: 2,722

Front Street

Good

Over: AMTRAK ; CONRAIL

N of Venango Street 29A02, Philadelphia, PA

Built 1908 Load: 29.0 t ADT: 11,500

Summit Avenue

Good

Over: SEPTA (Chestnut Hill E.)

S of Stenton Avenue 16K02, Philadelphia, PA

Built 1883 Load: 29.0 t ADT: 1,100

T-514 CTY BR #1

Good

Over: APPLEMANS RUN

VILLAGE OF LIGHTSTREET, Columbia, PA

Built 2002 Load: 29.0 t ADT: 1,000

US 30

Good

Over: PITNEY RD

US 30 OVER PITNEY RD, Lancaster, PA

Built 2002 Load: 29.0 t ADT: 105,303

SR 3012 (LR 06063)

Good

Over: CACOOSING CREEK

MOUNTAIN HOME ROAD, Berks, PA

Built 2005 Load: 29.0 t ADT: 2,796

SR 99-I 99

Good

Over: SELLERS LANE/WADDLE CR

5 MI W STATE COLLEGE, Centre, PA

Built 2005 Load: 29.0 t ADT: 10,995

SR 3036

Good

Over: SR.3001 S.GEORGE STREET

.2 MI. S. OF PA 165, York, PA

Built 2006 Load: 29.0 t ADT: 5,815

SR 3003

Good

Over: POPLAR RUN

1 MILE WEST OF NEWRY, Blair, PA

Built 2007 Load: 29.0 t ADT: 1,402

SR 0084 I-84 WB

Good

Over: WALLENPAUPACK CREEK

GREENE TWP 1.5 M W TR 507, Pike, PA

Built 2021 Load: 29.0 t ADT: 7,063

PA TPK I-76

Good

Over: Bore Mill Run

HOPEWELL TWP, Cumberland, PA

Built 2018 Load: 29.5 t ADT: 21,102

I-76 (WB)

Good

Over: PASSYUNK AVE;VARE AVE

PASSYUNK AVE OVPAS 37B05, Philadelphia, PA

Built 1957 Load: 29.8 t ADT: 23,768

T519 EAST BLIND RD

Good

Over: BLACK HOLE CREEK

1.2 MI WEST OF MONTGOMERY, Lycoming, PA

Built 2013 Load: 29.8 t ADT: 50

T-781 Morgan Rd

Good

Over: PA-TPK (576)

Just east of I-79, Washington, PA

Built 2019 Load: 29.8 t ADT: 192

MOON CLINTON RD

Good

Over: SR 0376 EB WB

MOON CLINTON RD OVER 0060, Allegheny, PA

Built 1992 Load: 29.9 t ADT: 5,180

RAMP I

Good

Over: MCKNIGHT INTERCHANGE

RAMP I-OVER EVERGREEN RD, Allegheny, PA

Built 1986 Load: 29.9 t ADT: 13,485

SR 0376 EB

Good

Over: T.R. 535 Chapel Rd

I-376 SB Over T.R. 535, Beaver, PA

Built 1973 Load: 29.9 t ADT: 10,784

PINE GROVE RD

Good

Over: SIX MILE RUN

7000N.OF TR68, Beaver, PA

Built 1961 Load: 29.9 t ADT: 188

SELLERSVILLE BYPAS

Good

Over: GREEN TOP ROAD(T455)

1MI.S.BETHLEHEM PK.14A09, Bucks, PA

Built 1967 Load: 29.9 t ADT: 44,227

SR0068

Good

Over: B&P RR & CONNOQUEN CREEK

NE OF EVANS CITY, Butler, PA

Built 1954 Load: 29.9 t ADT: 12,706

PA 271

Good

Over: N BR BLACKLICK CREEK

2.1 MILE SOUTH OF TR 553, Cambria, PA

Built 1964 Load: 29.9 t ADT: 1,287

US-1 BYPASS (SB)

Good

Over: CHURCH ROAD

NEAR AVONDALE 46F04, Chester, PA

Built 1965 Load: 29.9 t ADT: 12,295

SR 0080

Good

Over: D&H RR

.2 MI.W.OF MIFFLINVILLE, Columbia, PA

Built 1964 Load: 29.9 t ADT: 12,623

SR 2028

Good

Over: D&H RR NB SUSQUEHANNA R.

VILLAGE OF MIFFLINVILLE, Columbia, PA

Built 1994 Load: 29.9 t ADT: 5,088

SR 1102 FOX ROAD

Good

Over: OVER SR 79 SB

CUSSEWAGO TOWNSHIP, Crawford, PA

Built 1969 Load: 29.9 t ADT: 75

SR 1011

Good

Over: LITTLE AUGHWICK CREEK

NEAR FORT LITTLETON, Fulton, PA

Built 1971 Load: 29.9 t ADT: 701

US 522

Good

Over: CRAIG RUN

1.3 MILE NORTH OF TR 641, Huntingdon, PA

Built 1968 Load: 29.9 t ADT: 5,452

PA 994

Good

Over: RAYSTOWN LAKE-MAIN CHAN.

1.9 MILE EAST OF SR 3009, Huntingdon, PA

Built 1973 Load: 29.9 t ADT: 1,435

US 30; SR 0030

Good

Over: SR 4003; KINDERHOOK RD

COLUMBIA BORO, Lancaster, PA

Built 1970 Load: 29.9 t ADT: 48,561

SR-0180 WBL

Good

Over: OVER CARPENTERS RUN

1 MI N OF HALLS STATION, Lycoming, PA

Built 1975 Load: 29.9 t ADT: 10,846

Showing 12,751-12,800 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.