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-437

Fair

Over: SAW MILL RUN

1 MILE NORTH RTE 209, Carbon, PA

Built 1970 Load: 32.7 t ADT: 1,500

FREDERICKS GRVE RD

Fair

Over: MAHONING CREEK

500N.OF SR 443, Carbon, PA

Built 1910 Load: 32.7 t ADT: 250

ASHTOWN DR.

Fair

Over: MAHONING CREEK

1 MILE NORTH RTE 443, Carbon, PA

Built 1910 Load: 32.7 t ADT: 500

PA TPK (I-476)

Fair

Over: LEHIGH RIVER

CARBON & LUZERNE CO. LINE, Carbon, PA

Built 1955 Load: 32.7 t ADT: 14,889

SR 26-PA 26

Fair

Over: SLAB CABIN RUN/BIKE PATH

LEMONT, Centre, PA

Built 1985 Load: 32.7 t ADT: 17,219

SR 45-PA 45 +RAMPS

Fair

Over: SPRING CREEK

BOALSBURG, Centre, PA

Built 1971 Load: 32.7 t ADT: 10,479

SR 45-PA 45

Fair

Over: BRANCH PENNS CREEK

PENN HALL, Centre, PA

Built 1930 Load: 32.7 t ADT: 5,226

SR 3027

Fair

Over: MOSHANNON CREEK

SPIKE ISLAND, Centre, PA

Built 1962 Load: 32.7 t ADT: 201

ON TSR 888

Fair

Over: SPRUCE CREEK

ROCK SPRINGS, Centre, PA

Built 1962 Load: 32.7 t ADT: 615

T-419 LOW GEORGE V

Fair

Over: LAUREL RUN

VILLAGE OF LOCUST GROVE, Centre, PA

Built 1930 Load: 32.7 t ADT: 100

LAMB STREET

Fair

Over: SPRING CREEK

20 FT WEST SR 150, Centre, PA

Built 1992 Load: 32.7 t ADT: 3,300

US 1 BY-PASS

Fair

Over: WEST BRANCH BIG ELK CR.

NR. LINCOLN UNIV. 44B9, Chester, PA

Built 1968 Load: 32.7 t ADT: 16,670

WEST CHESTER PIKE

Fair

Over: INDIAN RUN

NEAR KUM-ON-INN 34A9, Chester, PA

Built 1960 Load: 32.7 t ADT: 28,199

SOUTH CHURCH STR.

Fair

Over: BRANCH BUCK RUN CREEK

S.E..PARKESBURG 27F10, Chester, PA

Built 1986 Load: 32.7 t ADT: 8,578

ROUTE 30 BY-PASS

Fair

Over: OLD WILMINGTON ROAD

NORTH COATESVILLE 27J4, Chester, PA

Built 1961 Load: 32.7 t ADT: 29,503

ROUTE 30 BY-PASS

Fair

Over: ROCK RAYMOND ROAD

NEAR DOWNINGTOWN 20D13, Chester, PA

Built 1961 Load: 32.7 t ADT: 64,245

NEWPORT PIKE

Fair

Over: LIMESTONE ROAD

NEAR KAOLIN 55C1, Chester, PA

Built 1941 Load: 32.7 t ADT: 20,209

UNION STREET

Fair

Over: EAST PENN RAILROAD

KENNETT SQUARE; 47F06, Chester, PA

Built 1932 Load: 32.7 t ADT: 7,497

CHADDSFORD ROAD

Fair

Over: BRANCH BRANDYWINE CREEK

.5MI.N.DEL.LINE 49B05, Chester, PA

Built 1860 Load: 32.7 t ADT: 2,124

PIKE SPRINGS ROAD

Fair

Over: BRANCH OF FRENCH CREEK

100 KIMBERTON RD 14H6, Chester, PA

Built 1961 Load: 32.7 t ADT: 8,479

WEST CHESTER BYPAS

Fair

Over: BRANCH CHESTER CREEK

NEAR WEST CHESTER 32E12, Chester, PA

Built 1954 Load: 32.7 t ADT: 56,708

US 202(NB)

Fair

Over: WEST CHESTER BYPASS WB

WEST CHESTER 32D07, Chester, PA

Built 1968 Load: 32.7 t ADT: 39,381

US 202 (SB)

Fair

Over: WEST CHESTER BYPASS WB

WEST CHESTER 32D7, Chester, PA

Built 1968 Load: 32.7 t ADT: 42,422

CREEK ROAD

Fair

Over: E.BR. BRANDYWINE CREEK

2 MI.S. 30 BYPASS 20G13, Chester, PA

Built 1974 Load: 32.7 t ADT: 6,262

JENNERSVILLE ROAD

Fair

Over: OCTORARO RAILROAD

NEAR KELTON 45A10/3908K1, Chester, PA

Built 1980 Load: 32.7 t ADT: 8,139

CHATHAM ROAD

Fair

Over: US 1 BY-PASS

US-1;PA 841 INTER. 45J7, Chester, PA

Built 1967 Load: 32.7 t ADT: 1,111

LITTLE CONESTOGA R

Fair

Over: MARSH CREEK DAM PROJECT

MARSH CREEK PARK 20D1, Chester, PA

Built 1972 Load: 32.7 t ADT: 6,285

HORSE SHOE TRAIL

Fair

Over: BIRCH RUN

WEST VINCENT TWP. 13D08, Chester, PA

Built 1940 Load: 32.7 t ADT: 920

PA TPK (I-76)

Fair

Over: SR1003 NORFOLK SOUTHERN

NEAR DEVAULT, Chester, PA

Built 2003 Load: 32.7 t ADT: 42,480

PA TPK (I-76)

Fair

Over: W. BR. TROUT CRK

EAST OF VALLEY FORGE PARK, Chester, PA

Built 1950 Load: 32.7 t ADT: 47,120

NORTH BAILEY ROAD

Fair

Over: VALLEY RUN

0.2 Mi.N.SR 0030B 3580-J1, Chester, PA

Built 1981 Load: 32.7 t ADT: 3,000

LOCUST GROVE ROAD

Fair

Over: BRANCH POCOPSON CREEK

0.7 MI N SR52 ADC 3692-C7, Chester, PA

Built 1966 Load: 32.7 t ADT: 750

CHESTERBROOK BLVD.

Fair

Over: US 202

INTER. OF SR0202 3365-F10, Chester, PA

Built 1980 Load: 32.7 t ADT: 3,000

RESERVOIR ROAD

Fair

Over: ROCK RUN

3/4 MI S PA 340 3469-B10, Chester, PA

Built 1920 Load: 32.7 t ADT: 225

JAFFREY ROAD

Fair

Over: CRUM CREEK

2.0 MI W OF SR252 3475-C8, Chester, PA

Built 1920 Load: 32.7 t ADT: 250

SR-0338

Fair

Over: SR-0080 EB & WB

MONROE, Clarion, PA

Built 1966 Load: 32.7 t ADT: 671

SR0368

Fair

Over: LICKING CREEK

CALLENSBURG NO.2, Clarion, PA

Built 1932 Load: 32.7 t ADT: 1,742

SR0861

Fair

Over: LONG RUN

COTTAGE HILL, Clarion, PA

Built 1958 Load: 32.7 t ADT: 1,642

SR0861

Fair

Over: FIDDLERS RUN

DIAMOND NO.2, Clarion, PA

Built 1958 Load: 32.7 t ADT: 992

SR1015

Fair

Over: TOMS RUN

TOMS RUN, Clarion, PA

Built 1937 Load: 32.7 t ADT: 377

SR2009

Fair

Over: CHERRY RUN

TOBY NO.1, Clarion, PA

Built 1938 Load: 32.7 t ADT: 306

T-407 CULBERTSON

Fair

Over: CANOE CREEK

0.7 mi E int w/ SR 338, Clarion, PA

Built 1997 Load: 32.7 t ADT: 50

T-589 SHADY DRIVE

Fair

Over: MAHLES RUN

0.5 mi NW int w/ SR 4015, Clarion, PA

Built 1984 Load: 32.7 t ADT: 50

T-310 METZ RD

Fair

Over: RICHEY RUN

0.1 mi N int w/ SR 0038, Clarion, PA

Built 1910 Load: 32.7 t ADT: 50

SR8002

Fair

Over: RICHEY RUN

RICHEY RUN NO.2, Clarion, PA

Built 1966 Load: 32.7 t ADT: 794

SR 53-PA 53

Fair

Over: MOSHANNON CREEK

CHESTER HILL BORO, Clearfield, PA

Built 1973 Load: 32.7 t ADT: 6,276

SR 80-I 80

Fair

Over: GRAVEL LICK CREEK

ONE-HALF MI W EXIT 101, Clearfield, PA

Built 1967 Load: 32.7 t ADT: 8,789

SR 80-I 80

Fair

Over: ALDER RUN

2 MI W EXIT 133, Clearfield, PA

Built 1967 Load: 32.7 t ADT: 8,476

SR 153-PA 153

Fair

Over: WILSON RUN

3 MI NW PENFIELD, Clearfield, PA

Built 1959 Load: 32.7 t ADT: 2,467

SR 453-PA 453

Fair

Over: PINE RUN

BELSENA MILLS, Clearfield, PA

Built 1964 Load: 32.7 t ADT: 404

Showing 4,201-4,250 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.