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

SELLERSVILLE BYPAS

Fair

Over: RELIANCE ROAD(T427)

1MILES TO LR 356 20E08, Bucks, PA

Built 1967 Load: 28.1 t ADT: 30,042

SELLERSVILLE BYPAS

Fair

Over: N.E.BRANCH PERKIOMEN CR

.4MI.TO LR 09104 20C05, Bucks, PA

Built 1967 Load: 28.1 t ADT: 43,031

NEWTOWN YARDLEY RD

Fair

Over: INTERSTATE 295

1MI.W.YARDLEY RD. 32H13, Bucks, PA

Built 1967 Load: 28.1 t ADT: 7,804

BUCK ROAD

Fair

Over: NESHAMINY CREEK

1.2MI.TO LR-09042 36H04, Bucks, PA

Built 1932 Load: 28.1 t ADT: 9,487

RADCLIFFE STREET

Fair

Over: ADAMS HOLLOW CREEK

BRISTOL BOROUGH 43C11, Bucks, PA

Built 1911 Load: 28.1 t ADT: 5,221

CATHILL ROAD

Fair

Over: EAST BR.PERKIOMEN CREEK

1.8MI.W.SELLERSVI. 20A06, Bucks, PA

Built 1970 Load: 28.1 t ADT: 1,376

COVERED BRIDGE RD.

Fair

Over: TOHICKON CREEK

SHEARDS MILL BDG. 08K12, Bucks, PA

Built 1873 Load: 28.1 t ADT: 147

GRAVEL HILL ROAD

Fair

Over: MILL CREEK

UPPER SOUTHHAMPTO 3260-H3, Bucks, PA

Built 1860 Load: 28.1 t ADT: 900

WRIGHTS ROAD

Fair

Over: NEWTOWN CREEK

NEWTOWN TOWNSHIP 3037-K10, Bucks, PA

Built 1983 Load: 28.1 t ADT: 500

LOWER HOLLAND ROAD

Fair

Over: IRONWORKS CREEK

0.80MI S OF SR232 3148-J9, Bucks, PA

Built 1952 Load: 28.1 t ADT: 3,916

PA TURNPIKE(I-276)

Fair

Over: NORFOLK S.RR

NEAR TREVOSE 41A04, Bucks, PA

Built 1954 Load: 28.1 t ADT: 90,000

PA TPK (I-276)

Fair

Over: SR 2037 (US 1 ALT)

NEAR TR132 & TR1 JUNCTION, Bucks, PA

Built 1954 Load: 28.1 t ADT: 85,801

SR0008

Fair

Over: BIG RUN

SOUTH OF STONEHOUSE, Butler, PA

Built 1942 Load: 28.1 t ADT: 9,078

SR0068

Fair

Over: LIKENS RUN

NW OF EVANS CITY, Butler, PA

Built 1958 Load: 28.1 t ADT: 7,567

SR0079 NB&SB

Fair

Over: BLACK RUN

NORTH OF PORTERSVILLE, Butler, PA

Built 1964 Load: 28.1 t ADT: 25,905

T-348 E.LANCASTER

Fair

Over: LITTLE YELLOW CREEK

BTW T336 & SR3025, Butler, PA

Built 1908 Load: 28.1 t ADT: 200

PA 56

Fair

Over: SR3033&T334(WALTERS AVE)

0.9 MILE WEST OF TR 219, Cambria, PA

Built 1964 Load: 28.1 t ADT: 23,424

I-80 EB (LR 1009)

Fair

Over: BLACK CREEK

1.5 MI.E.OF TURNPIKE, Carbon, PA

Built 1964 Load: 28.1 t ADT: 8,087

T-435 POHOPOCO DR

Fair

Over: PINE RUN/BELTZVILLE LAKE

PINE RUN BRIDGE, Carbon, PA

Built 1968 Load: 28.1 t ADT: 1,240

SR 144-PA 144

Fair

Over: SR 80-I 80

4 MI SE SNOW SHOE, Centre, PA

Built 1966 Load: 28.1 t ADT: 996

SR 322-US 322

Fair

Over: SR 3012 SLAB CABIN RUN

3 MI N STATE COLLEGE, Centre, PA

Built 1984 Load: 28.1 t ADT: 9,795

ON TSR 965

Fair

Over: BEAVER BRANCH

2 MI SE MARENGO, Centre, PA

Built 1942 Load: 28.1 t ADT: 344

T-468 RODGERS ROAD

Fair

Over: ROARING RUN

1125 FT EAST INT RT 445, Centre, PA

Built 1936 Load: 28.1 t ADT: 200

MANOR ROAD

Fair

Over: INDIAN RUN

1 MI. N. US 322 19A2, Chester, PA

Built 1910 Load: 28.1 t ADT: 4,978

KIMBERTON ROAD

Fair

Over: PICKERING CREEK

1.5MI.TO PIKELAND 13K12, Chester, PA

Built 1961 Load: 28.1 t ADT: 10,555

CHRISTINE ROAD

Fair

Over: US 1 BY-PASS

NEAR NOTTINGHAM 50J08, Chester, PA

Built 1967 Load: 28.1 t ADT: 4,507

POTTSTOWN BY-PASS

Fair

Over: LAURELWOOD ROAD (LOCAL)

POTTSTOWN 02D11, Chester, PA

Built 1966 Load: 28.1 t ADT: 36,973

GRUBBS MILL ROAD

Fair

Over: CRUM CREEK

NR RADNOR HUNT CLUB 34C4, Chester, PA

Built 1921 Load: 28.1 t ADT: 1,672

WHITEHORSE ROAD

Fair

Over: CRUM CREEK

SW WAYNESBOROUGH CC 33K1, Chester, PA

Built 1904 Load: 28.1 t ADT: 1,744

UNIONVILLE ROAD

Fair

Over: POCOPSON CREEK

POCOPSON TWP. 40C08, Chester, PA

Built 1923 Load: 28.1 t ADT: 1,356

THIRD STREET

Fair

Over: EAST BR.WHITE CLAY CREEK

NEAR TOUGHKENAMON 46E7, Chester, PA

Built 1912 Load: 28.1 t ADT: 1,642

CREEK ROAD

Fair

Over: E. BR. BRANDYWINE CREEK

NEAR WYEBROOKE 10J8, Chester, PA

Built 1914 Load: 28.1 t ADT: 358

WEST SOUTH STREET

Fair

Over: WEST BR RED CLAY CREEK

KENNETT TOWNSHIP 47C06, Chester, PA

Built 1980 Load: 28.1 t ADT: 4,267

PA TPK (I-76)

Fair

Over: SR 0422 SR 3039

WEST OF VALLEY FORGE INT6, Chester, PA

Built 1950 Load: 28.1 t ADT: 37,954

SR0036

Fair

Over: TOBY CREEK

TOBY DRIVE NO.2, Clarion, PA

Built 1932 Load: 28.1 t ADT: 1,868

SR0066 NB&SB

Fair

Over: SR0080 EB & BRUSH RUN

GREENVILLE PIKE NO.1, Clarion, PA

Built 1965 Load: 28.1 t ADT: 5,594

SR0080 EB&WB

Fair

Over: TURKEY RUN

TURKEY RUN, Clarion, PA

Built 1966 Load: 28.1 t ADT: 19,821

SR0080 EB&WB

Fair

Over: CLARION RIVER

CLARION RIVER, Clarion, PA

Built 1965 Load: 28.1 t ADT: 23,440

SR0322

Fair

Over: TRIB TO DEER CREEK

WEST OF SHIPPENVILLE, Clarion, PA

Built 1946 Load: 28.1 t ADT: 3,374

SR0322

Fair

Over: PAINT CREEK

PAINT CREEK, Clarion, PA

Built 1940 Load: 28.1 t ADT: 9,424

SR1001

Fair

Over: MILL CREEK

STROUP, Clarion, PA

Built 1968 Load: 28.1 t ADT: 486

SR2005

Fair

Over: PINEY CREEK

KINGSVILLE CHURCH, Clarion, PA

Built 1968 Load: 28.1 t ADT: 310

SR3002

Fair

Over: BLACK FOX RUN

BLUE GOOSE, Clarion, PA

Built 1933 Load: 28.1 t ADT: 87

SR8010

Fair

Over: TRIB TO BRUSH RUN

SECEDER RAMP, Clarion, PA

Built 1966 Load: 28.1 t ADT: 1,517

SR 322-US 322

Fair

Over: CLEARFIELD CREEK

CLEARFIELD, Clearfield, PA

Built 1937 Load: 28.1 t ADT: 8,047

SR 729-PA 729

Fair

Over: W BR SUSQUEHANNA RIVER

LUMBER CITY BORO, Clearfield, PA

Built 1963 Load: 28.1 t ADT: 1,089

SR 879-PA 879

Fair

Over: SR 153-PA 153

CLEARFIELD BORO, Clearfield, PA

Built 1975 Load: 28.1 t ADT: 13,397

SR 1006

Fair

Over: SR 80-I 80

2 MI W EXIT 120, Clearfield, PA

Built 1965 Load: 28.1 t ADT: 796

BLOOMINGTON AVE

Fair

Over: RJ CORMAN RR

0.5 MI SE OF SR 879, Clearfield, PA

Built 1983 Load: 28.1 t ADT: 1,900

SR 144-PA 144

Fair

Over: W BR SUSQUEHANNA RIVER

CARMEN R ROSAMILIA MEMORI, Clinton, PA

Built 1970 Load: 28.1 t ADT: 174

Showing 2,251-2,300 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.