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

CHESTER CREEK ROAD

Fair

Over: BRANCH CHESTER CREEK

1MI.S.KNOWLTON 42K01, Delaware, PA

Built 1920 Load: 42.4 t ADT: 1,201

McCLELLAND AVENUE

Fair

Over: OVER LITTLE SANDY CREEK

POLK BOROUGH, Venango, PA

Built 1960 Load: 42.4 t ADT: 170

US 30; SR 0030

Fair

Over: SOUTH BR OF CONEWAGO CK

W OF NEW OXFORD, Adams, PA

Built 1929 Load: 42.6 t ADT: 13,138

SR 1007

Fair

Over: BERMUDIAN CREEK

1 MI S OF BERMUDIAN, Adams, PA

Built 1947 Load: 42.6 t ADT: 862

SR 3009

Fair

Over: MINEY BR. OF TOMS CREEK

FOUNTAINDALE, Adams, PA

Built 1956 Load: 42.6 t ADT: 744

SWIFT RUN ROAD

Fair

Over: SWIFT RUN

2.5 NW NEW OXFORD/SWIFT R, Adams, PA

Built 1974 Load: 42.6 t ADT: 400

BEAVER RUN ROAD

Fair

Over: BEAVERDAM CREEK

1.5 M W N CHESTER/BURDAM, Adams, PA

Built 1963 Load: 42.6 t ADT: 75

SR 65

Fair

Over: JACKS RUN FARRAGUT RD

BELLEVUE OVER JACKS RUN, Allegheny, PA

Built 1984 Load: 42.6 t ADT: 28,590

RAYMOND SHAFER HW

Fair

Over: W&LE RR CHARTIERS CREEK

500NORTH OF TR 50, Allegheny, PA

Built 1965 Load: 42.6 t ADT: 32,056

RAYMOND SHAFER HW

Fair

Over: THOMS RUN RD FLOOD CHAN.

0.7 MI. S.E. OF SR 3052, Allegheny, PA

Built 1965 Load: 42.6 t ADT: 35,339

TARENTUM BR RMP.B

Fair

Over: NS RR 4TH AVE ROSS ST

Tarentum Bridge, Allegheny, PA

Built 1952 Load: 42.6 t ADT: 16,959

PARKWAY EAST

Fair

Over: RAMP A WB

376 OVER WB RAMP A, Allegheny, PA

Built 1961 Load: 42.6 t ADT: 57,615

BAUM BL

Fair

Over: N-S RR PAT EAST BUSWAY

008 Baum Blvd Bridge, Allegheny, PA

Built 1913 Load: 42.6 t ADT: 16,305

SR 885

Fair

Over: CLIFF

Blvd of The Allies Bluffs, Allegheny, PA

Built 1950 Load: 42.6 t ADT: 28,222

RAMP R

Fair

Over: BRADDOCK AVE RAMP B

TriBoro Expressway, Allegheny, PA

Built 1974 Load: 42.6 t ADT: 3,181

NOBLESTOWN ROAD

Fair

Over: ROBINSON RUN

AT I-79 INTERCHANGE, Allegheny, PA

Built 1972 Load: 42.6 t ADT: 18,247

EAST OHIO ST

Fair

Over: I-279 NB-SB & HOV

E. OHIO ST.UNDER SR 0579, Allegheny, PA

Built 1986 Load: 42.6 t ADT: 25,187

OLD BOWER HILL RD

Fair

Over: POHC & W&KE RR

117001 OLD BOWER HILL RD, Allegheny, PA

Built 1993 Load: 42.6 t ADT: 8,243

GRIMM RD

Fair

Over: BULL CREEK

202001 OVER BULL CREEK, Allegheny, PA

Built 1984 Load: 42.6 t ADT: 50

NIXON RD

Fair

Over: B&LE RAILROAD

1.5 M NORTH 76/28 INTER, Allegheny, PA

Built 2000 Load: 42.6 t ADT: 1,500

PLEASANT ST

Fair

Over: PINEY FORK CREEK

219004 200 N INT BRWNVLE, Allegheny, PA

Built 2002 Load: 42.6 t ADT: 400

BETHEL CHURCH RD

Fair

Over: PORT AUTHOR LINE BR 9860

PT15 HILLCREST BRIDGE, Allegheny, PA

Built 1987 Load: 42.6 t ADT: 16,470

RANKIN BR

Fair

Over: SR837EX 3 RRS KENMARAVE

MA0735 RANKIN BR-MAIN STR, Allegheny, PA

Built 1951 Load: 42.6 t ADT: 25,860

SR0056

Fair

Over: TRIB TO CROOKED CREEK

BARREL VALLEY, Armstrong, PA

Built 1960 Load: 42.6 t ADT: 3,462

SR0066 NB&SB

Fair

Over: SR0422;SR2025;GARRETTS

1/112TH INFANTRY ALPHA CO, Armstrong, PA

Built 1980 Load: 42.6 t ADT: 18,245

SR1010

Fair

Over: MAHONING CREEK

EDDYVILLE NO.1, Armstrong, PA

Built 1965 Load: 42.6 t ADT: 56

T-300 WILSON RD

Fair

Over: BUFFALO CREEK

1000 feet s. of T-314, Armstrong, PA

Built 1984 Load: 42.6 t ADT: 300

SR 0376 EB

Fair

Over: CLOSED SR 3024

OVER CLOSED SR 3024, Beaver, PA

Built 1969 Load: 42.6 t ADT: 14,186

ALLEGHENY STREET

Fair

Over: BLOCK HOUSE RUN

2000 EAST OF SR 0018, Beaver, PA

Built 1967 Load: 42.6 t ADT: 5,404

RNR-ACCESS RD

Fair

Over: SR 0065 & NORFOLK SOUTHE

004059 .5M S/SR 0065&0989, Beaver, PA

Built 1990 Load: 42.6 t ADT: 350

PA 96

Fair

Over: DUNNING CREEK

0.5 MI.N.OF NEW PARIS, Bedford, PA

Built 1938 Load: 42.6 t ADT: 1,639

SR 3012

Fair

Over: RAYSTOWN BR. JUNIATA RIV

1.5 MI.W.OF KEGG, Bedford, PA

Built 1940 Load: 42.6 t ADT: 349

SR 4001

Fair

Over: BENTZ RUN

2.5 MI.SW.OF NEW PARIS, Bedford, PA

Built 1937 Load: 42.6 t ADT: 227

SR 4009

Fair

Over: GAP RUN

2.5 MI.NE.OF OSTERBURG, Bedford, PA

Built 1955 Load: 42.6 t ADT: 1,448

PA TPK (I-76)

Fair

Over: COVE CREEK

ASHCOM, Bedford, PA

Built 1939 Load: 42.6 t ADT: 36,252

SR 78(LR 285)

Fair

Over: TWP.RD.808(RESERVOIR RD.

2 MI.E.OF HAMBURG, Berks, PA

Built 1957 Load: 42.6 t ADT: 34,859

SR 3022--CHURCH ST

Fair

Over: WYOMISSING CREEK

MOHNTON BORO(CHURCH ST), Berks, PA

Built 1949 Load: 42.6 t ADT: 1,448

SR 0222-SH(LR1035)

Fair

Over: TWP RD 552:BLESSING LANE

NB OVER BLESSING LANE, Berks, PA

Built 1966 Load: 42.6 t ADT: 33,430

SR 0222-SB(LR1035)

Fair

Over: TWP RD 552:BLESSING LANE

SB OVER BLESSING LANE, Berks, PA

Built 1966 Load: 42.6 t ADT: 32,395

PTC Connector Ramp

Fair

Over: SR 0010; LR 06090

Morgantown Interchange, Berks, PA

Built 1990 Load: 42.6 t ADT: 39,934

GOLF COURSE ROAD

Fair

Over: SEIDEL CREEK

SOUTH OF GIBRALTAR, Berks, PA

Built 1966 Load: 42.6 t ADT: 800

LINCOLN DRIVE

Fair

Over: LITTLE CACOOSING CREEK

.5 MI. E. OF WERNERSVILLE, Berks, PA

Built 1942 Load: 42.6 t ADT: 3,682

SR 1041

Fair

Over: NS/LEHIGH RR/NO BR SUS R

TOWANDA RIVER BR.JAMES ST, Bradford, PA

Built 1977 Load: 42.6 t ADT: 2,063

SR 1055

Fair

Over: PARKS CREEK

2.5 MI. N. OF ROME BORO, Bradford, PA

Built 1961 Load: 42.6 t ADT: 399

SR 4014

Fair

Over: TRIB WEST BR TOMJACK CRK

1.3 MI.E.OF HARKNESS, Bradford, PA

Built 1900 Load: 42.6 t ADT: 1,889

SOUDERTON PIKE

Fair

Over: PLEASANT SPRINGS CREEK

1.9MI.TO LR 153 20K06, Bucks, PA

Built 1969 Load: 42.6 t ADT: 10,988

FALLSINGTON AVENUE

Fair

Over: AMTRAK MAIN;CANAL STR.

TULLYTOWN BORO 43G04, Bucks, PA

Built 1929 Load: 42.6 t ADT: 1,442

NORTH 4TH STREET

Fair

Over: BRANCH OF TOHICKON CREEK

0.13MI N OF SR0313 14A01, Bucks, PA

Built 1938 Load: 42.6 t ADT: 1,365

UPPER ROCKY DALE

Fair

Over: RIDGE VALLEY CREEK

0.6 Mi W SR4027 2918-H1, Bucks, PA

Built 1989 Load: 42.6 t ADT: 135

SR0019 NB&SB

Fair

Over: COAL RUN

OGLE NO.2, Butler, PA

Built 1952 Load: 42.6 t ADT: 39,844

Showing 8,501-8,550 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.