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

LINCOLN RD

Fair

Over: SHADES RUN

SD03 SHADES RUN BR # 3, Allegheny, PA

Built 1987 Load: 43.5 t ADT: 3,766

MCELHENY RD

Fair

Over: PINE CREEK SOUTH BRANCH

PS05 PINE CR S.BR. #5, Allegheny, PA

Built 1914 Load: 43.5 t ADT: 2,000

MORGAN HILL RD

Fair

Over: MILLERS RUN

MS05 MILLERS RUN NO. 5, Allegheny, PA

Built 1890 Load: 43.5 t ADT: 1,300

WINDGAP AV

Fair

Over: EDMORE&CRKRD RRS&CHARCK

CC02 CHARTIERS CRK # 2, Allegheny, PA

Built 1985 Load: 43.5 t ADT: 12,037

PJ McARDLE ROADWAY

Fair

Over: HILLSIDE

065 PJ McArdle Rdwy Via 2, Allegheny, PA

Built 1934 Load: 43.5 t ADT: 9,028

CAROTHERS ST

Fair

Over: CHARTIERS CREEK

CC06 CHARTIERS CRK # 6, Allegheny, PA

Built 1927 Load: 43.5 t ADT: 8,513

RAMP-E TO 79 NB

Fair

Over: NEV. IS. RAMP TO NB 79

Neville Island Bridge, Allegheny, PA

Built 1972 Load: 43.5 t ADT: 5,260

CALIFORNIA AV

Fair

Over: SR 0065 NB SB

CALIF.AVE.OVER SR 65, Allegheny, PA

Built 1971 Load: 43.5 t ADT: 1,776

RAMP-C

Fair

Over: NORFOLK&SOUTHERN RR

Elizabeth Bridge, Allegheny, PA

Built 1947 Load: 43.5 t ADT: 2,498

RAMP J RD

Fair

Over: SR 4003-EVERGREEN RD.

MCKNIGHT INTERCHANGE RAMP, Allegheny, PA

Built 1986 Load: 43.5 t ADT: 13,874

SR0028

Fair

Over: MAHONING CREEK

MAHONING FURNACE NO.1, Armstrong, PA

Built 1990 Load: 43.5 t ADT: 6,931

SR0068

Fair

Over: SUGAR CREEK

BRADYS BEND NO.7, Armstrong, PA

Built 1919 Load: 43.5 t ADT: 2,748

CONSTITUTION BL

Fair

Over: DILWORTH RUN

1/4 MI.S.E.OF TWP.RD.625, Beaver, PA

Built 1950 Load: 43.5 t ADT: 9,067

CONCORD CHURCH RD

Fair

Over: BARRIS CREEK

100W.OF BRUSH CRK.PK., Beaver, PA

Built 1941 Load: 43.5 t ADT: 1,207

RACCOON CREEK RD

Fair

Over: FISH POT RUN

RACCOON TWP-FISHPOT RUN, Beaver, PA

Built 1954 Load: 43.5 t ADT: 158

T-561

Fair

Over: PA TPK (I-76)

EAST OF UNIONVILLE, Beaver, PA

Built 1952 Load: 43.5 t ADT: 200

PA 31

Fair

Over: COVE RUN

0.8 MI.N.OF MANNS CHOICE, Bedford, PA

Built 1958 Load: 43.5 t ADT: 3,905

PA 96

Fair

Over: GEORGES CREEK

1.8 MILE NORTH OF TR 56, Bedford, PA

Built 1938 Load: 43.5 t ADT: 1,227

PA 915

Fair

Over: SANDY RUN

0.6 MILE SOUTH OF TR 26, Bedford, PA

Built 1959 Load: 43.5 t ADT: 826

TURNPIKE I-70&I-76

Fair

Over: SR 2027(LR 05093);B-519

EVERETT, Bedford, PA

Built 1939 Load: 43.5 t ADT: 33,684

T358 Cove Road

Fair

Over: LITTLE WILLS CREEK

2 MI.SW.OF MADLEY, Bedford, PA

Built 1996 Load: 43.5 t ADT: 50

PA 662 (LR 06069)

Fair

Over: QUARRY RD./A-TOWN CEMENT

MEMORIAL HWY.S.OF OLEY, Berks, PA

Built 1974 Load: 43.5 t ADT: 5,098

SR 1006(LR 06139)

Fair

Over: SACONY CREEK

CRYSTAL RIDGE RD., Berks, PA

Built 1950 Load: 43.5 t ADT: 290

SR 0222NB (LR1035)

Fair

Over: TULPEHOCKEN CREEK;T-602

1 MI S OF LEINBACHS, Berks, PA

Built 1962 Load: 43.5 t ADT: 33,430

SR0222SB(LR 1035)

Fair

Over: TULPEHOCKEN CREEK;T-602

1 MI S OF LEINBACHS, Berks, PA

Built 1962 Load: 43.5 t ADT: 32,395

SR 222 (LR 1035)

Fair

Over: T-938 (LEISCZS BR. RD.)

5 MI N OF SINKING SPRING, Berks, PA

Built 1966 Load: 43.5 t ADT: 27,862

US 222 SB(LR 1035)

Fair

Over: T-938(LEISCZS BR. RD)

5 MI N OF SINKING SPRING, Berks, PA

Built 1966 Load: 43.5 t ADT: 26,305

SCHOOL STREET

Fair

Over: SIXPENNY CREEK

N. OF SR 724 NR.MONOCACY, Berks, PA

Built 1907 Load: 43.5 t ADT: 175

I-99 / US 220 NBL

Fair

Over: PA 36

VILLAGE OF LAKEMONT, Blair, PA

Built 1985 Load: 43.5 t ADT: 15,895

SR 4027

Fair

Over: CALIFORNIA RUN

.75 MI.N.E. OF BALD EAGLE, Blair, PA

Built 1913 Load: 43.5 t ADT: 1,510

SR 4018

Fair

Over: NORFOLK SOUTHERN RR

.8 MI.W.OF PINECROFT, Blair, PA

Built 1986 Load: 43.5 t ADT: 1,583

T-431 WERTZ ROAD

Fair

Over: PINEY CREEK

2.5 MI.W.OF WILLIAMSBURG, Blair, PA

Built 1997 Load: 43.5 t ADT: 21

SR 6

Fair

Over: SUGAR CREEK

1 MI.E.OF TROY BORO, Bradford, PA

Built 1988 Load: 43.5 t ADT: 6,330

U.S. SR 6

Fair

Over: WYALUSING CREEK

WYALUSING BORO BRIDGE ST., Bradford, PA

Built 1970 Load: 43.5 t ADT: 9,182

SR 414

Fair

Over: ALBA CREEK

2 MI.EAST OF CANTON, Bradford, PA

Built 1963 Load: 43.5 t ADT: 2,360

SR 1033

Fair

Over: LANING CREEK

2.5 MI.NW OF WYSOX, Bradford, PA

Built 1966 Load: 43.5 t ADT: 98

SR 4014

Fair

Over: BUCKS CREEK

SMITHFRDTWP07M E TWPRD706, Bradford, PA

Built 1900 Load: 43.5 t ADT: 2,686

SR 4019 (ELMIRA ST

Fair

Over: SUGAR CREEK

SYLVANIA BORO, Bradford, PA

Built 1975 Load: 43.5 t ADT: 772

OLD YORK ROAD

Fair

Over: WATSON CREEK

.5MI.TO LR 656 23J12, Bucks, PA

Built 1969 Load: 43.5 t ADT: 8,707

DOYLESTOWN BY-PASS

Fair

Over: PINE RUN

.6MI.S.LR 156 23A07, Bucks, PA

Built 1973 Load: 43.5 t ADT: 12,802

NEW FALLS ROAD

Fair

Over: NESHAMINY CREEK

NEWPORTVILLE 42E07, Bucks, PA

Built 1964 Load: 43.5 t ADT: 16,979

MINSI TRAIL

Fair

Over: MORRIS RUN

SOUTH ROUTE 113 15E13, Bucks, PA

Built 1973 Load: 43.5 t ADT: 2,172

SAW MILL ROAD

Fair

Over: KIMPLES CREEK

2MI.N.NOCKAMIXON 09C05, Bucks, PA

Built 1937 Load: 43.5 t ADT: 141

OLD EASTON ROAD

Fair

Over: NOCKAMIXON CREEK

AHLERS BRIDGE 2584-A2, Bucks, PA

Built 1826 Load: 43.5 t ADT: 100

MILL ROAD

Fair

Over: WATSON CREEK

BUCKINGHAM TWP. 2923-H10, Bucks, PA

Built 1912 Load: 43.5 t ADT: 200

PUMPING STATION RD

Fair

Over: TOHICKON CREEK

0.9 MI W OF SR 0212, Bucks, PA

Built 1982 Load: 43.5 t ADT: 800

CHURCH ROAD

Fair

Over: HAYCOCK CREEK

HAYCOCK;NOCKAMIXON 09K03, Bucks, PA

Built 1928 Load: 43.5 t ADT: 100

SR0308

Fair

Over: S BR SLIPPERY ROCK CREEK

NORTH OF WEST SUNBURY, Butler, PA

Built 1959 Load: 43.5 t ADT: 2,380

SR1013

Fair

Over: ABAND B&LE RR

MILLER, Butler, PA

Built 1991 Load: 43.5 t ADT: 390

SR4002

Fair

Over: LAKE ONEIDA / CONNOQ CR

LAKE ONEIDA, Butler, PA

Built 1968 Load: 43.5 t ADT: 968

Showing 8,801-8,850 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.