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

KOHN ROAD T-431

Poor

Over: PAXTON CREEK

.6 NW 81 &PROG.AVE PXTCRK, Dauphin, PA

Built 1987 Load: 12.7 t ADT: 450

BRIARWOOD ROAD

Poor

Over: DARBY CREEK

0.9 M W PA-320 3476-K10, Delaware, PA

Built 1970 Load: 12.7 t ADT: 750

HICKORY RUN ROAD

Poor

Over: CONODOGUINET CREEK

0.63 MI. SW OF SR 4016, Franklin, PA

Built 1963 Load: 12.7 t ADT: 125

T-578 LEMLEY HILL

Poor

Over: LITTLE SHANNON RUN

100 S OF SHANNON RUN RD, Greene, PA

Built 1930 Load: 12.7 t ADT: 30

T-834 BALSA RD

Poor

Over: DIXON RUN

BTW SR403 & SR1018, Indiana, PA

Built 1970 Load: 12.7 t ADT: 200

SR 3009

Poor

Over: LITTLE CONEWAGO CREEK

UPPER LAWN, Lebanon, PA

Built 1937 Load: 12.7 t ADT: 311

LOUSER RD.

Poor

Over: BACHMAN RUN

6. S ANNVILLE/BACHMAN RUN, Lebanon, PA

Built 1973 Load: 12.7 t ADT: 550

FAUX ROAD

Poor

Over: WAPWALLOPEN CREEK

0.5 MI NW OF SR 3011, Luzerne, PA

Built 1900 Load: 12.7 t ADT: 20

T-665

Poor

Over: PLEASANT STREAM

2.3 MI. NE OF MARSH HILL, Lycoming, PA

Built 1950 Load: 12.7 t ADT: 108

T-349 BORDELL RD

Poor

Over: COLE CREEK

2 MI W OF BORDELL CROSS, McKean, PA

Built 1915 Load: 12.7 t ADT: 75

BRIDGE 2108 T-784

Poor

Over: OVER YELLOW CREEK BRANCH

HOSACK RD JACKSON TWP., Mercer, PA

Built 1965 Load: 12.7 t ADT: 241

T-464

Poor

Over: LAUREL CREEK

INTERSECTION T-464&SR1012, Mifflin, PA

Built 1920 Load: 12.7 t ADT: 1,000

HIGH STREET

Poor

Over: SPROGELS RUN

SANATOGA 3139-C01, Montgomery, PA

Built 1910 Load: 12.7 t ADT: 16,326

MORELAND AVENUE

Poor

Over: BRANCH OF PENNYPACK CRK

3259-B2 ADC Atlas, Montgomery, PA

Built 1958 Load: 12.7 t ADT: 9,860

TWP RD T-696

Poor

Over: PLUM CREEK

N OF SEVEN POINTS, Northumberland, PA

Built 1939 Load: 12.7 t ADT: 60

T-301 WINONA FALLS

Poor

Over: BUSHKILL CREEK

150 S OF CREEK RD, Pike, PA

Built 1956 Load: 12.7 t ADT: 1,400

SR 3002

Poor

Over: COWLEY RUN

5 MI W AUSTIN, Potter, PA

Built 1943 Load: 12.7 t ADT: 550

SR 1006(LR 53087)

Poor

Over: MILL CREEK

HANCOCK STREET, Schuylkill, PA

Built 1917 Load: 12.7 t ADT: 1,657

SR 4036

Poor

Over: LITTLE CATAWISSA CREEK

RINGTOWN, Schuylkill, PA

Built 1914 Load: 12.7 t ADT: 1,850

LINE STREET

Poor

Over: GOODSPRING CREEK

TREMONT BORO ON LINE ST., Schuylkill, PA

Built 1937 Load: 12.7 t ADT: 550

T-410

Poor

Over: N. BR. MEHOOPANY CREEK

0.3 MI. SE OF COLLEY, Sullivan, PA

Built 1925 Load: 12.7 t ADT: 50

T604 (CREAMERY RD)

Poor

Over: ELK LAKE STREAM

.5 MILES SOUTH OF RUSH, Susquehanna, PA

Built 1920 Load: 12.7 t ADT: 75

T-426 GREENLEE RD

Poor

Over: TRIB. LITTLE SANDY CREEK

FRENCH CREEK/MINERAL TWPS, Venango, PA

Built 1950 Load: 12.7 t ADT: 50

SR 27 NORTH MAIN

Poor

Over: OVER MATTHEWS RUN

SUGAR GROVE TOWNSHIP, Warren, PA

Built 1931 Load: 12.7 t ADT: 1,107

SR 1011 CONEWANGO

Poor

Over: OVER HATCH RUN

GLADE TOWNSHIP, Warren, PA

Built 1953 Load: 12.7 t ADT: 3,890

REDDS MILL ROAD

Poor

Over: PIGEON CREEK

NE OF BENTLEYVILLE, Washington, PA

Built 1935 Load: 12.7 t ADT: 350

KREPPS BRIDGE T799

Poor

Over: RACCOON CREEK

200 WEST OF SR 4015, Washington, PA

Built 1887 Load: 12.7 t ADT: 40

SR 1004

Poor

Over: CALKINS CREEK

DAMASCUS TWP 400N SR1002, Wayne, PA

Built 1957 Load: 12.7 t ADT: 524

SR 3018

Poor

Over: BRANCH MIDDLE CREEK

S CANAAN TP 1.8M N TR 296, Wayne, PA

Built 1937 Load: 12.7 t ADT: 710

RIVERHILL DR T994

Poor

Over: TUBMILL CREEK

600 FT NORTH OF SR 711, Westmoreland, PA

Built 1960 Load: 12.7 t ADT: 50

SR 2002

Poor

Over: BRANCH MARSH CREEK

N MORELAND TP .1M W TR292, Wyoming, PA

Built 1961 Load: 12.7 t ADT: 204

SR 2024 paper mill

Poor

Over: N BR OF MUDDY CREEK

1 MI. E. MCKINLEY, York, PA

Built 1937 Load: 12.7 t ADT: 642

SR 2071

Poor

Over: TOMS RUN

1 MI.N.E. MUDDY CRK.FORKS, York, PA

Built 1940 Load: 12.7 t ADT: 116

MCKEESPORT BLVD

Poor

Over: UNION RAILROAD

0.5 MI NW OF SR 0837, Allegheny, PA

Built 1960 Load: 13.6 t ADT: 17,583

FRAZIER ST

Poor

Over: CSX/AV RR SALINE ST

110 SWINBURNE BRIDGE, Allegheny, PA

Built 1915 Load: 13.6 t ADT: 6,000

SPRING HILL RD

Poor

Over: N-S RR/R-R ST/CREEK

P09203 WALL BOROUGH, Allegheny, PA

Built 1915 Load: 13.6 t ADT: 2,002

T-881 CLINTON ROAD

Poor

Over: BUFFALO & PITTSBURG RR

1.5 miles s. of SR-3128, Armstrong, PA

Built 1910 Load: 13.6 t ADT: 45

FRANKFORT ROAD

Poor

Over: RACCOON CREEK

POTTER TWP, Beaver, PA

Built 1932 Load: 13.6 t ADT: 5,733

T526 Polecat Hlw R

Poor

Over: YELLOW CREEK

1 MI.NW.OF HOPEWELL, Bedford, PA

Built 1930 Load: 13.6 t ADT: 62

SR 3037(LR 06029)

Poor

Over: MILL RACE

CHARMING FORGE, Berks, PA

Built 1941 Load: 13.6 t ADT: 219

YODER ROAD

Poor

Over: OYSTERVILLE CREEK

PLEASANTVILLE, Berks, PA

Built 1940 Load: 13.6 t ADT: 207

S OLD BETHLEHEM PK

Poor

Over: MORGAN CREEK

0.7 Mi N 309 Int 2807-F4, Bucks, PA

Built 1922 Load: 13.6 t ADT: 2,800

T-578 SHULER ROAD

Poor

Over: LITTLE BUFFALO RUN

1.2 MI SE of SR 0422, Butler, PA

Built 1915 Load: 13.6 t ADT: 100

SR 1009

Poor

Over: CHEST CREEK

4 MI.N.OF LORETTO, Cambria, PA

Built 1934 Load: 13.6 t ADT: 476

ACCESS ROAD

Poor

Over: SOLOMON RUN

DALE BORO.MAINT.SHED, Cambria, PA

Built 1978 Load: 13.6 t ADT: 21

ALLERTON ROAD

Poor

Over: E BR OF BRANDYWINE CREEK

E BRADFORD TWP 3582-J10, Chester, PA

Built 1905 Load: 13.6 t ADT: 1,361

RAVINE ROAD

Poor

Over: BRANCH VALLEY CREEK

3.2 MI S OF SR 30 3582-D1, Chester, PA

Built 1913 Load: 13.6 t ADT: 140

Frog Hollow Road

Poor

Over: Branch of Buck Run

.3 Mi E. of PA-82 3689-J2, Chester, PA

Built 1930 Load: 13.6 t ADT: 560

T-312 CTY BR #157

Poor

Over: EAST BR. FISHING CREEK

JAMISON CITY, Columbia, PA

Built 1977 Load: 13.6 t ADT: 75

T-743 HAMILTON RD.

Poor

Over: OVER MUDDY CREEK

.5 MI SE SR0077ATHENS TWP, Crawford, PA

Built 1920 Load: 13.6 t ADT: 250

Showing 20,951-21,000 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.