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

MERCER ROAD

Poor

Over: CONNOQUENESSING CREEK

50 FT S OF SR 1006, Beaver, PA

Built 1976 Load: 34.5 t ADT: 6,538

CHAPEL DR

Poor

Over: BRUSH CREEK

200S.E.OF SR 1012, Beaver, PA

Built 1969 Load: 34.5 t ADT: 2,055

T337 Narrow Lane

Poor

Over: BEAVERS RUN

3 MI.S.OF CENTERVILLE, Bedford, PA

Built 1932 Load: 34.5 t ADT: 50

PA 61(LR 160)

Poor

Over: KAERCHERS CK

HAMBURG BOROUGH, Berks, PA

Built 1952 Load: 34.5 t ADT: 20,892

SR 2057(LR 06204)

Poor

Over: LEAF CREEK

TOWNSHIPLINE&TOLLGATE RDS, Berks, PA

Built 1914 Load: 34.5 t ADT: 483

SR 3017

Poor

Over: NORTH BRANCH TOWANDA CRK

2 MI.N.OF W.FRANKLIN, Bradford, PA

Built 1967 Load: 34.5 t ADT: 101

STERNER MILL ROAD

Poor

Over: POQUESSING CREEK

LOWER SOUTHAMPTON 40K05, Bucks, PA

Built 1920 Load: 34.5 t ADT: 300

OLD DOLINGTON ROAD

Poor

Over: HOUGHS CREEK

.75 Mi N. PA-532 3038-G5, Bucks, PA

Built 1940 Load: 34.5 t ADT: 100

MECHANIC STREET

Poor

Over: DELAWARE CANAL

500 FT WEST OF SR 32, Bucks, PA

Built 1832 Load: 34.5 t ADT: 380

SR 2011

Poor

Over: LARDINTOWN RUN

LARDINTOWN NO.4, Butler, PA

Built 1910 Load: 34.5 t ADT: 241

DOWNINGTOWN PIKE

Poor

Over: VALLEY CREEK

W. OF WEST CHESTER 31B9, Chester, PA

Built 1929 Load: 34.5 t ADT: 12,126

CAMBRIDGE ROAD

Poor

Over: HONEY BRK.W.BR.BRANDYWIN

SW OF HONEY BROOK 9D13, Chester, PA

Built 1910 Load: 34.5 t ADT: 613

SR 153-PA 153

Poor

Over: BEAVER RUN

HOUTZDALE BORO, Clearfield, PA

Built 1920 Load: 34.5 t ADT: 2,381

T-697

Poor

Over: MORAVIAN RUN

2.1 MI W OF SR 1009 INTER, Clearfield, PA

Built 1915 Load: 34.5 t ADT: 10

GOOD STREET

Poor

Over: BEAVER RUN

CENTENNIAL ST INTERSECT, Clearfield, PA

Built 1910 Load: 34.5 t ADT: 1,130

T-720 BENTON BR 3

Poor

Over: WEST CREEK

0.8 MI. N OF BENTON, Columbia, PA

Built 1958 Load: 34.5 t ADT: 240

SR 285 3RD ST.

Poor

Over: OVER MCMICHAEL RUN

GREENWOOD TOWNSHIP, Crawford, PA

Built 1947 Load: 34.5 t ADT: 2,149

SR 1022 COOLEY-CEN

Poor

Over: OVER OIL CREEK

CENTERVILLE BOROUGH, Crawford, PA

Built 1956 Load: 34.5 t ADT: 500

DEVONSHIRE HEIGHTS

Poor

Over: MANADA CREEK

2.5 N UNION DEP/EHT/MANAD, Dauphin, PA

Built 1980 Load: 34.5 t ADT: 300

MARKET STREET

Poor

Over: PAXTON CREEK

MARKET ST/ PAXTON CRK, Dauphin, PA

Built 1900 Load: 34.5 t ADT: 8,000

WALNUT ST

Poor

Over: JONESTOWN ROAD HARRISBUR

WLNT ST OVER JONSTN R/HBG, Dauphin, PA

Built 1914 Load: 34.5 t ADT: 200

13TH STREET

Poor

Over: NORFOLK SOUTHERN

OFF PAXTON ST/HARRISBURG, Dauphin, PA

Built 1965 Load: 34.5 t ADT: 7,500

BETHEL ROAD

Poor

Over: BRANCH MARCUS HOOK CREEK

BETHEL ROAD 42F05, Delaware, PA

Built 1926 Load: 34.5 t ADT: 2,968

GILMORE ROAD

Poor

Over: NAYLORS RUN

100 S. of PA-3 3588-B5, Delaware, PA

Built 1946 Load: 34.5 t ADT: 490

T-609 JORDAN RD

Poor

Over: OVER SR 90 EB/WB

HARBOR CREEK TOWNSHIP, Erie, PA

Built 1959 Load: 34.5 t ADT: 806

SR 0166

Poor

Over: CATS CREEK

NICHOLSON TOWNSHIP, Fayette, PA

Built 1928 Load: 34.5 t ADT: 1,728

SR 1030

Poor

Over: GIST RUN

DUNBAR TOWNSHIP, Fayette, PA

Built 1925 Load: 34.5 t ADT: 1,063

SR 2031

Poor

Over: COAL LICK RUN

SOUTH UNION TOWNSHIP, Fayette, PA

Built 1918 Load: 34.5 t ADT: 4,475

SR 4040

Poor

Over: LAMB LICK RUN

WASHINGTON TOWNSHIP, Fayette, PA

Built 1941 Load: 34.5 t ADT: 142

PA 995; SR 0995

Poor

Over: WELSH RUN

.25 MI N E OF WELSH RUN, Franklin, PA

Built 1933 Load: 34.5 t ADT: 1,007

WEST KING STREET

Poor

Over: FALLING SPRING CREEK

300 FT W OF US 11, Franklin, PA

Built 1918 Load: 34.5 t ADT: 3,535

SR 1014

Poor

Over: BRANCH OF CASTILE RUN

MORGAN TOWNSHIP, Greene, PA

Built 1930 Load: 34.5 t ADT: 65

TOWNSHIP ROAD 481

Poor

Over: FROSTY RUN

VILLAGE OF FORDYCE, Greene, PA

Built 1970 Load: 34.5 t ADT: 50

PA TPK (I-76)WB

Poor

Over: T-300 & SERVICE RD

WEST OF TUSCARORA TUNNEL, Huntingdon, PA

Built 1969 Load: 34.5 t ADT: 21,197

SR 22-US 22

Poor

Over: SR 2003 AND DOE RUN

MEXICO, Juniata, PA

Built 1972 Load: 34.5 t ADT: 7,630

SR 2007

Poor

Over: DOE RUN

1 MI S VAN WERT, Juniata, PA

Built 1940 Load: 34.5 t ADT: 191

T-436 E. SALEM RD

Poor

Over: DELAWARE CREEK

0.1 MI S OF SR 234 INTER, Juniata, PA

Built 1919 Load: 34.5 t ADT: 400

T-558 WHITEHALL RD

Poor

Over: TRIB. TO COCOLAMUS CREEK

.45 MI NORTH OF SR 35 INT, Juniata, PA

Built 1929 Load: 34.5 t ADT: 240

SR 0438 TR 438

Poor

Over: SOUTH BR TUNKHANNOCK CK

SCOTT TWP 1.3 M W TR 247, Lackawanna, PA

Built 1928 Load: 34.5 t ADT: 992

SR 4008

Poor

Over: ACKERLY CREEK

GLENBURN TWP JCT TR 6, Lackawanna, PA

Built 1952 Load: 34.5 t ADT: 248

ALBRIGHT AVENUE

Poor

Over: LACKAWANNA RIVER

200 FT NE OF COURT STREET, Lackawanna, PA

Built 1984 Load: 34.5 t ADT: 6,100

PADEN RD

Poor

Over: HICKORY RUN

206003 NEAR RT 317, Lawrence, PA

Built 1940 Load: 34.5 t ADT: 50

SR 0118 TR 118

Poor

Over: PIKES CREEK

LAKE TWP .1 M E TR 29, Luzerne, PA

Built 1935 Load: 34.5 t ADT: 7,042

SR 0118 TR 118

Poor

Over: HARVEYS CREEK

LEHMAN TWP .8 M W SR 1059, Luzerne, PA

Built 1935 Load: 34.5 t ADT: 7,042

SR 0309 TR 309

Poor

Over: BOW CREEK

WRIGHT TWP .7 M S SR 2045, Luzerne, PA

Built 1929 Load: 34.5 t ADT: 14,059

SR 6-US 6

Poor

Over: IRON HOLLOW RUN

3 MI SE SMETHPORT, McKean, PA

Built 1921 Load: 34.5 t ADT: 1,852

BRIDGE 611 T-859

Poor

Over: OVER NORTH DEER CREEK

CREEK RD. FRENCH CREEK TW, Mercer, PA

Built 1987 Load: 34.5 t ADT: 9

BRIDGE 403 T-714

Poor

Over: OVER SANDY CREEK

LARIMER RD. SANDY CREEK, Mercer, PA

Built 1963 Load: 34.5 t ADT: 82

BRIDGE 2707 T-481

Poor

Over: OVER WOLF CREEK

EAST GILMORE RD WOLF CRK, Mercer, PA

Built 1959 Load: 34.5 t ADT: 201

T-458 TAYLOR MILL

Poor

Over: KISHACOQUILLAS CREEK

4500FT S INT T458 & SR655, Mifflin, PA

Built 1900 Load: 34.5 t ADT: 80

Showing 22,601-22,650 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.