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

FRUITVILLE ROAD

Poor

Over: PERKIOMEN CREEK

0.85 MI SW OF SR 29 02D07, Montgomery, PA

Built 1905 Load: 0.0 t ADT: 250

SNYDER ROAD

Poor

Over: PERKIOMEN CREEK

SNYDER ROAD LR158 2917C7, Montgomery, PA

Built 1903 Load: 0.0 t ADT: 600

ROBERTS ROAD

Poor

Over: SKIPPACK CREEK

1.7 N of PA-63 3031-E7, Montgomery, PA

Built 1908 Load: 0.0 t ADT: 26

OLD GRAVEL PIKE

Poor

Over: SWAMP CREEK

3029-E7 ADC Street Atlas, Montgomery, PA

Built 1915 Load: 0.0 t ADT: 100

FETTERS MILL ROAD

Poor

Over: PENNYPACK CREEK

.6 Mi NW PA-232 3259-J10, Montgomery, PA

Built 1883 Load: 0.0 t ADT: 3,280

T-392 CTY BR # 9

Poor

Over: MUD CREEK

2 MI. E. WASHINGTONVILLE, Montour, PA

Built 1907 Load: 0.0 t ADT: 1

T-308 CTY BR # 2

Poor

Over: BEAVER RUN

1.3 MI. E. OF POTTS GROVE, Montour, PA

Built 1912 Load: 0.0 t ADT: 15

DEPUES ROAD

Poor

Over: OUGHOUGHTON CREEK

EAST OF SR 1004, Northampton, PA

Built 1937 Load: 0.0 t ADT: 150

T-701

Poor

Over: JACOBY CREEK

EAST OF JOHNSONVILLE, Northampton, PA

Built 1930 Load: 0.0 t ADT: 150

SEIDERSVILLE ROAD

Poor

Over: SAUCON CREEK

0.2 MILES WEST OF PA 412, Northampton, PA

Built 1936 Load: 0.0 t

HIGH ST

Poor

Over: LEHIGH CANAL + NORFORK

1 MILE EAST OF LR48010, Northampton, PA

Built 1910 Load: 0.0 t ADT: 80

CANAL ROAD

Poor

Over: DELAWARE CANAL

RAUBSVILLE, Northampton, PA

Built 1952 Load: 0.0 t ADT: 60

T-594

Poor

Over: CHILLISQUAQUE CREEK

EAST OF POTTSGROVE, Northumberland, PA

Built 1881 Load: 0.0 t ADT: 100

T-672

Poor

Over: GLADE RUN

0.7MI N OF INT T675 T672, Northumberland, PA

Built 1904 Load: 0.0 t

T-393

Poor

Over: HALLOWING RUN

S OF SUNBURY, Northumberland, PA

Built 1904 Load: 0.0 t ADT: 25

T-802

Poor

Over: S BR OF ROARING CREEK

E. OF ELYSBURG, Northumberland, PA

Built 1870 Load: 0.0 t

T-372 SAWMILL ROAD

Poor

Over: BRIDGE CREEK

2000 FT N OF SR 3002, Pike, PA

Built 1970 Load: 0.0 t ADT: 50

RIVER DR.

Poor

Over: SCHUYLKILL RIVER

2 MI S. OF AUBURN, Schuylkill, PA

Built 1903 Load: 0.0 t ADT: 20

COLLINS ST

Poor

Over: RDG.BLUE MT.NOR RR SCH.R

COLLINS ST SO OF US 209, Schuylkill, PA

Built 1890 Load: 0.0 t

JOHN ST.

Poor

Over: MAHANOY CREEK

JOHN ST IN GIRARDVILLE, Schuylkill, PA

Built 1930 Load: 0.0 t

COLLIERY ST.

Poor

Over: MILL CREEK

COLLIERY ST. ST.CLAIR, Schuylkill, PA

Built 1921 Load: 0.0 t ADT: 50

SHERMAN STREET

Poor

Over: MILL CREEK

SHERMAN ST. ST.CLAIR, Schuylkill, PA

Built 1919 Load: 0.0 t ADT: 300

T444 OLD ROUTE 219

Poor

Over: MEADOW RUN

.25 MI.SW.OF SALISBURY, Somerset, PA

Built 1919 Load: 0.0 t ADT: 62

CHERRY TWP T-474

Poor

Over: LITTLE LOYALSOCK CREEK

1.3 MI E OF DUSHORE, Sullivan, PA

Built 1901 Load: 0.0 t ADT: 30

T-328

Poor

Over: MUNCY CREEK

0.5 MI SE OF NORDMONT, Sullivan, PA

Built 1942 Load: 0.0 t ADT: 108

CABIN ROAD

Poor

Over: LOYALSOCK CREEK

WORLDS END STATE PARK, Sullivan, PA

Built 1983 Load: 0.0 t ADT: 100

T-797

Poor

Over: SALT SPRING RUN

2 MI SE OF EASTPOINT, Tioga, PA

Built 1935 Load: 0.0 t ADT: 5

T-319 RED BRIDGE

Poor

Over: PENNS CREEK

0.9 MI SW OF MILLMONT, Union, PA

Built 1855 Load: 0.0 t ADT: 10

T-357

Poor

Over: N. BR. BUFFALO CREEK

EAST OF JOHNSTOWN, Union, PA

Built 1900 Load: 0.0 t ADT: 119

WILLIAMS ROAD

Poor

Over: MIDDLE BR. SUGAR CREEK

PLUM TOWNSHIP, Venango, PA

Built 1880 Load: 0.0 t ADT: 100

SR 4017

Poor

Over: W BR DYBERRY CREEK

DYBERRY TWP .5M W SR 4007, Wayne, PA

Built 1885 Load: 0.0 t ADT: 22

T-880 DONEGAL LAKE

Poor

Over: FOUR MILE RUN

1/4 MI SW OF SR 130, Westmoreland, PA

Built 1919 Load: 0.0 t ADT: 100

SECOND STREET

Poor

Over: NORFOLK SOUTHERN RR

SECOND ST BRIDGE, Westmoreland, PA

Built 1987 Load: 0.0 t ADT: 3,000

FIRST STREET

Poor

Over: TINKERS RUN

FIRST STREET BRIDGE, Westmoreland, PA

Built 1950 Load: 0.0 t

HEATHER DRIVE

Poor

Over: HAYMAKER RUN

200 WEST OF SR 4033, Westmoreland, PA

Built 1988 Load: 0.0 t ADT: 2,000

WEST FRANKLIN ST.

Poor

Over: LITTLE TUSCARORA CREEK

ADJ TO LACEY ST (SR 4006), Wyoming, PA

Built 1938 Load: 0.0 t ADT: 75

PA 921; SR 0921

Poor

Over: FOX RUN

0.6 MI.E. DOVER BORO LINE, York, PA

Built 1937 Load: 0.0 t ADT: 6,502

SR 1019 Brunner is

Poor

Over: DIVERSION CHANNEL

1 MILE S OF YORK HAVEN, York, PA

Built 1959 Load: 0.0 t ADT: 1,185

T759; FURNACE ROAD

Poor

Over: CABIN CREEK

3 W. E.PROSPECT/CABIN CRK, York, PA

Built 1970 Load: 0.0 t ADT: 400

Margie Street

Poor

Over: AMTRAK CONRAIL

at Nineteenth St 3590-D1, Philadelphia, PA

Built 1919 Load: 0.0 t

BRIDGE 250 T-568

Poor

Over: OVER BLUFF RUN

CALVIN RD SUGAR GROVE TWP, Mercer, PA

Built 1900 Load: 0.0 t

T-330 Nickler Rd

Poor

Over: SALT RUN

100 FT E. OF PA 155, Cameron, PA

Built 1929 Load: 0.0 t

T-854 KILEY DRIVE

Poor

Over: CRABTREE CREEK

AT SR1022 IN GREENWALD, Westmoreland, PA

Built 1930 Load: 0.0 t

T-497

Poor

Over: TENMILE CREEK

FRANKLIN TOWNSHIP, Greene, PA

Built 1915 Load: 0.0 t ADT: 20

VALLEY ROAD

Poor

Over: TRAVERSE CREEK

1000 FT EAST OF SR 0018, Beaver, PA

Built 1925 Load: 0.0 t

N. WASHINGTON ST.

Poor

Over: LUZERNE & SUSQUEHANNA RR

100 NE OF E. CHESTNUT ST, Luzerne, PA

Built 1929 Load: 0.0 t ADT: 1,000

Big Ridge Drive

Poor

Over: Pond Creek; Swamp

0.2 MI W OF US 209, Monroe, PA

Built 1992 Load: 0.0 t ADT: 200

T343 Jordan Cem Rd

Poor

Over: Abandoned Railroad

1.5mi south of Rockhill, Huntingdon, PA

Built 1901 Load: 0.0 t

WOODVIEW ROAD

Poor

Over: E. BR. OF WHITE CLAY CR

1/4 MI. E. PA-841 3799K6, Chester, PA

Built 1972 Load: 0.0 t ADT: 250

Dale Drive

Poor

Over: Big Wapwallopen Creek

1/2MI FROM N MAIN ST, Luzerne, PA

Built 1997 Load: 0.0 t ADT: 350

Showing 20,451-20,500 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.