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-456 BRIDGE #6

Poor

Over: TRIBUTARY TO MUD RUN

1.2 MI SW OF ROHRSBURG, Columbia, PA

Built 1921 Load: 36.3 t ADT: 120

SR 90 WB

Poor

Over: OVER SR 20 E/WB E MAIN

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 36.3 t ADT: 9,175

SR 2001

Poor

Over: RUDOLPH RUN

WAYNE & PERRY TOWNSHIP, Greene, PA

Built 1938 Load: 36.3 t ADT: 13

SR 2008

Poor

Over: DUNKARD CREEK

DUNKARD TOWNSHIP, Greene, PA

Built 1941 Load: 36.3 t ADT: 66

SR0286

Poor

Over: REEDS RUN

JACKSONVILLE NO.1, Indiana, PA

Built 1922 Load: 36.3 t ADT: 3,074

SR1045

Poor

Over: BROADHEAD RUN

BROADHEAD RUN NO.2, Indiana, PA

Built 1902 Load: 36.3 t ADT: 187

SR2019

Poor

Over: TEARING RUN

COY NO.2, Indiana, PA

Built 1936 Load: 36.3 t ADT: 395

SR0080 EB

Poor

Over: NORTH FORK & WAT PLNT RD

NORTH FORK EB, Jefferson, PA

Built 1962 Load: 36.3 t ADT: 12,280

PA 501; fur.hill

Poor

Over: FURNACE RUN

1.5 MI. N. OF BRICKERVILE, Lancaster, PA

Built 1930 Load: 36.3 t ADT: 9,813

GRAVEL HILL RD

Poor

Over: QUITTAPAHILLA CREEK

3 MI.N. OF PALMYRA, Lebanon, PA

Built 1967 Load: 36.3 t ADT: 3,641

SR 2007 SOUTH ST

Poor

Over: RR AND LOCAL STREETS

WILKES BARRE JCT SR 2012, Luzerne, PA

Built 1925 Load: 36.3 t ADT: 3,115

FIRST STREET

Poor

Over: MILL CREEK

VILLAGE OF HUDSON, Luzerne, PA

Built 1973 Load: 36.3 t ADT: 700

ON TSR 405

Poor

Over: FOWLER RUN

3 MI N CORYVILLE, McKean, PA

Built 1941 Load: 36.3 t ADT: 805

SR 2104 FOX MINE R

Poor

Over: OVER SR 79 NB/SB

JACKSON TOWNSHIP, Mercer, PA

Built 1965 Load: 36.3 t ADT: 255

BRIDGE 2717 T-481

Poor

Over: OVER WOLF CREEK EAST BR.

EAST GILMORE RD. WOLF CRK, Mercer, PA

Built 1959 Load: 36.3 t ADT: 390

SR 3013(LR 45005)

Poor

Over: MEIXELL CREEK

WEIR LAKE & CHESTNUT RDS., Monroe, PA

Built 1956 Load: 36.3 t ADT: 1,787

SR 4002 (LR 45040)

Poor

Over: TUNKHANNOCK CREEK

2.4 M. W.OF LONG POND, Monroe, PA

Built 1963 Load: 36.3 t ADT: 1,035

OLD WELSH ROAD

Poor

Over: PENNYPACK CREEK

BETHAYRES 32K7/3371J1, Montgomery, PA

Built 1968 Load: 36.3 t ADT: 30,136

HECTOR STREET

Poor

Over: SPRING MILL CREEK/3368E8

EAST CONSHOHOCKEN 35J02, Montgomery, PA

Built 1930 Load: 36.3 t ADT: 8,843

SR 244-PA 244

Poor

Over: OSWAYO CREEK

CONEVILLE, Potter, PA

Built 1947 Load: 36.3 t ADT: 279

SR 4001

Poor

Over: SARTWELL CREEK

4 MI N BURTVILLE, Potter, PA

Built 1949 Load: 36.3 t ADT: 176

SCHWENKS ROAD

Poor

Over: RAUSCH CREEK

SOUTH OF VALLEY VIEW, Schuylkill, PA

Built 1960 Load: 36.3 t ADT: 857

LAKE LOOP ROAD

Poor

Over: KOOSER RUN

600 FT SW OF SR 31, Somerset, PA

Built 1933 Load: 36.3 t ADT: 100

SR 0081 I-81 NB

Poor

Over: SR 0106 TR 106

LENOX TWP OVER TR 106, Susquehanna, PA

Built 1961 Load: 36.3 t ADT: 10,559

SR 0374 TR 374

Poor

Over: FIDDLE LAKE CREEK

HERRICK TWP 66 E SR 2042, Susquehanna, PA

Built 1959 Load: 36.3 t ADT: 421

SR 4018 MAPLE AVE

Poor

Over: DEWING CREEK

LTL MEADWS BO .3M W TR858, Susquehanna, PA

Built 1940 Load: 36.3 t ADT: 765

SR 4007 BACCUS RD

Poor

Over: COFFEE CREEK

COLUMBUS TOWNSHIP, Warren, PA

Built 1968 Load: 36.3 t ADT: 163

SR3008 GOOSE PD RD

Poor

Over: ARIEL CREEK

SALEM TWP .1 M E SR 3006, Wayne, PA

Built 1957 Load: 36.3 t ADT: 1,006

SR 2001

Poor

Over: SOUTH RUN CREEK

MONROE TWP .5 M S TR 29, Wyoming, PA

Built 1941 Load: 36.3 t ADT: 419

2nd Street

Poor

Over: AMTRAK (NE CORRIDOR)

N of Venango Street 29A02, Philadelphia, PA

Built 1926 Load: 36.3 t ADT: 14,600

T-664 TURNER VALLE

Poor

Over: TRIB. OF YOUGH. RIVER

AT INT W/SR 3047, Westmoreland, PA

Built 1901 Load: 36.3 t ADT: 10

GRANT ST

Poor

Over: ROBINSON RUN

50S.OF INTER.W/SR 3048, Allegheny, PA

Built 1980 Load: 37.2 t ADT: 3,228

CONNOR RD

Poor

Over: PAT TROLLEY # 9830

200W.OF INTER.W/SR 0088, Allegheny, PA

Built 1983 Load: 37.2 t ADT: 18,414

NORTHGATE DR

Poor

Over: BRUSH CREEK

212002 BRUSH CREEK BRIDGE, Allegheny, PA

Built 1929 Load: 37.2 t ADT: 3,000

SR 422 (LR793)

Poor

Over: THUN RECREATIONAL TRAIL

READING BYPASS, Berks, PA

Built 1963 Load: 37.2 t ADT: 82,168

TRAFFIC ROUTE 13

Poor

Over: PENN VALLEY ROAD

NORTH TULLYTOWN 38H11, Bucks, PA

Built 1955 Load: 37.2 t ADT: 18,771

U.S. ROUTE 13

Poor

Over: TYBURN ROAD

2MI.S.MORRISVILL 38H09, Bucks, PA

Built 1954 Load: 37.2 t ADT: 18,771

DUBLIN PIKE

Poor

Over: MORGAN CREEK

.1MI.TO LR 09082 14D02, Bucks, PA

Built 1930 Load: 37.2 t ADT: 10,965

DURHAM RD/PHILA.RD

Poor

Over: COOKS CREEK

DURHAM MILL 03H02, Bucks, PA

Built 1925 Load: 37.2 t ADT: 763

PT PLEASANT BRIDGE

Poor

Over: DELAWARE CANAL

300 FT EAST OF SR 32, Bucks, PA

Built 1832 Load: 37.2 t ADT: 20

BIRCH STREET

Poor

Over: EAST BRANCH RED CLAY CR.

KENNETT SQUARE 47F06, Chester, PA

Built 1926 Load: 37.2 t ADT: 1,653

T-300 PALMER ROAD

Poor

Over: OVER STONE RUN

BEAVER TOWNSHIP, Crawford, PA

Built 1965 Load: 37.2 t ADT: 100

SR 2005 ROUNDTOP R

Poor

Over: IRON MINE RUN

1.5 MI. E. MIDDLETOWN, Dauphin, PA

Built 1934 Load: 37.2 t ADT: 648

SR 2012

Poor

Over: NS RAILROAD

.5 MI. N. OF HERSHEY, Dauphin, PA

Built 1917 Load: 37.2 t ADT: 2,365

SR 3009 Paxton St

Poor

Over: Norfolk Southern RR

2nd and Paxton Sts Hbg, Dauphin, PA

Built 1929 Load: 37.2 t ADT: 17,359

T-340 (KELLER RD)

Poor

Over: LITTLE TOBY CREEK

1000 FT SE OF SR 2003, Elk, PA

Built 1930 Load: 37.2 t ADT: 75

T-365 (KETNER RD)

Poor

Over: JOHNSON RUN

4600 FT WEST OF SR 1001, Elk, PA

Built 1940 Load: 37.2 t ADT: 25

T-518 BEASON ROAD

Poor

Over: CONNEAUTTEE CREEK

1 MILE EAST OF SR 99, Erie, PA

Built 1900 Load: 37.2 t ADT: 31

SR2020

Poor

Over: BRUSH CREEK

EAST OF BRUSH VALLEY, Indiana, PA

Built 1941 Load: 37.2 t ADT: 308

SR4018

Poor

Over: LITTLE MAHONING CREEK

MCCORMICK, Indiana, PA

Built 1961 Load: 37.2 t ADT: 221

Showing 22,751-22,800 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.