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-371 KROUT LANE

Good

Over: LOGAN BRANCH

0.75 MI W of PLEASANT GAP, Centre, PA

Built 1972 Load: 38.1 t ADT: 75

SR2008

Good

Over: EAST FORK WILDCAT RUN

WILDCAT SCHOOL NO.1, Clarion, PA

Built 1975 Load: 38.1 t ADT: 123

SR 3016

Good

Over: CHEST CREEK

NEWBURG BORO, Clearfield, PA

Built 1987 Load: 38.1 t ADT: 220

TROUT RUN RD

Good

Over: TROUT RUN

2 MI NW OF SR 4001, Clinton, PA

Built 1997 Load: 38.1 t ADT: 15

SR 0339

Good

Over: CATAWISSA CREEK

2.25 MILES W OF SHUMANTWN, Columbia, PA

Built 1985 Load: 38.1 t ADT: 398

T-714 CTY BR #154

Good

Over: FISHING CREEK

1.5 MI. SOUTH OF CENTRAL, Columbia, PA

Built 1984 Load: 38.1 t ADT: 250

SR 173 ADAMS ST.

Good

Over: OVER LITTLE SUGAR CREEK

WAYNE TOWNSHIP, Crawford, PA

Built 1988 Load: 38.1 t ADT: 2,100

SR 173 ADAMS ST.

Good

Over: OVER LITTLE SUGAR CREEK

WAYNE TOWNSHIP, Crawford, PA

Built 1988 Load: 38.1 t ADT: 2,100

T-803 TOWER ROAD

Good

Over: OVER CONNEAUT CREEK

0.6 MI.W.SR-18 SPRING TWP, Crawford, PA

Built 2008 Load: 38.1 t ADT: 50

PA TPK (I-76)

Good

Over: T-570

CONEWAGO TWP, Dauphin, PA

Built 1949 Load: 38.1 t ADT: 24,423

RODGERS LANE

Good

Over: MID-COUNTY EXPRESSWAY

1/2MI.S.BALT.PIKE 34G07, Delaware, PA

Built 1989 Load: 38.1 t ADT: 2,175

BLUE BALL AVENUE

Good

Over: AMTRAK MAIN LINE

.2MI.NW INT 13 42G11, Delaware, PA

Built 1994 Load: 38.1 t ADT: 1,228

RED RUN ROAD

Good

Over: RED RUN

3 MI NORTH QUEHANNA HWY, Elk, PA

Built 2001 Load: 38.1 t ADT: 50

SR 2020 CONNELWAY

Good

Over: OVER SPENCER CREEK

WAYNE TOWNSHIP, Erie, PA

Built 1962 Load: 38.1 t ADT: 1,224

NUNNERY ROAD

Good

Over: W BR LITTLE ANTIETAM CRK

1 W TOMSTOWN/L ANTIETAM, Franklin, PA

Built 1982 Load: 38.1 t ADT: 300

TWIN BRIDGE RD

Good

Over: WILSON RUN

1.4 MI NORTH OF SR 30, Franklin, PA

Built 1976 Load: 38.1 t ADT: 400

SR 2011

Good

Over: ABND SHANNOPIN MINE R/R

DUNKARD TOWNSHIP, Greene, PA

Built 1990 Load: 38.1 t ADT: 579

PA 26

Good

Over: HOOVER RUN

1.5 MILE NORTH OF SR 3012, Huntingdon, PA

Built 1950 Load: 38.1 t ADT: 2,837

PA 305

Good

Over: SHAVERS CREEK

1.2 MILE EAST OF SR 1029, Huntingdon, PA

Built 1952 Load: 38.1 t ADT: 440

SR 2006

Good

Over: SHADE CREEK

1 MI.W.OF SHADE GAP, Huntingdon, PA

Built 1961 Load: 38.1 t ADT: 419

SR 2014

Good

Over: SUGAR RUN

0.25 MILE EAST OF CORA, Huntingdon, PA

Built 1997 Load: 38.1 t ADT: 234

T-583 INDUST PARK

Good

Over: NS RR

0.1 MI SW OF SR3009, Indiana, PA

Built 1988 Load: 38.1 t ADT: 350

T-525 LUNGER RD

Good

Over: CANOE CREEK

BTW SR1045 & SR1052, Indiana, PA

Built 2001 Load: 38.1 t ADT: 20

SR 3017

Good

Over: CONESTOGA RIVER

0.75 MI N OF SAFE HARBOR, Lancaster, PA

Built 1986 Load: 38.1 t ADT: 2,314

LIBERTY ST

Good

Over: MAHONING RIVER

CITY OF NEW CASTLE, Lawrence, PA

Built 1960 Load: 38.1 t ADT: 3,686

MAITLAND LANE

Good

Over: NESHANNOCK CREEK

2 MI. WEST OF SR 0388, Lawrence, PA

Built 1962 Load: 38.1 t ADT: 3,023

PA 100(LR 672)

Good

Over: TRIB.HASSEN CREEK

100 FT. N. OF APPLEWOOD, Lehigh, PA

Built 1964 Load: 38.1 t ADT: 16,721

SR 1002

Good

Over: LYCOMING CREEK

VILLAGE OF TROUT RUN, Lycoming, PA

Built 1980 Load: 38.1 t ADT: 317

SR 4001

Good

Over: OVER OTTER RUN

4 MI SW OF ENGLISH CENTER, Lycoming, PA

Built 1987 Load: 38.1 t ADT: 134

BRIDGE 2012 T-704

Good

Over: OVER KENTS RUN

MCEWEN RD. COOLSPRING TWP, Mercer, PA

Built 1994 Load: 38.1 t ADT: 48

BRIDGE 1112 T-695

Good

Over: OVER LITTLE SHENANGO BR.

SHELL ROAD NEW VERNON TWP, Mercer, PA

Built 1994 Load: 38.1 t ADT: 56

BRIDGE ROAD

Good

Over: PERKIOMEN CK MAINCHANNEL

RAHNS 20D4/3141H7, Montgomery, PA

Built 1992 Load: 38.1 t ADT: 10,262

P-TOWN X-WAY (EB)

Good

Over: UPPER INDIAN HEAD ROAD

N. OF OAKS 27D3/3253H8, Montgomery, PA

Built 1984 Load: 38.1 t ADT: 31,365

CHARLOTTE STREET

Good

Over: MINISTER CREEK

NEW HANOVER 12D1/3027F3, Montgomery, PA

Built 1998 Load: 38.1 t ADT: 9,573

GLENSIDE AVE.

Good

Over: TACONY CREEK

TACONY CRK CROSS 3370-G5, Montgomery, PA

Built 2005 Load: 38.1 t ADT: 9,000

SR 2002

Good

Over: HORTON CREEK

LATHROP TWP 618 E SR2009, Susquehanna, PA

Built 1961 Load: 38.1 t ADT: 181

SR 2007

Good

Over: BANE CREEK

AMWELL TOWNSHIP, Washington, PA

Built 1968 Load: 38.1 t ADT: 121

SAWHILL BRIDGE

Good

Over: BUFFALO CREEK

030 WEST OF SR 221, Washington, PA

Built 1915 Load: 38.1 t ADT: 38

SR 1071

Good

Over: HENDRICKS CREEK

FAIRFIELD TOWNSHIP, Westmoreland, PA

Built 1994 Load: 38.1 t ADT: 181

PA TPK (PA 66)

Good

Over: SR 2012

HEMPFIELD TWP, Westmoreland, PA

Built 1991 Load: 38.1 t ADT: 10,429

PA TPK (PA 66)

Good

Over: SR 2012

HEMPFIELD TWP, Westmoreland, PA

Built 1991 Load: 38.1 t ADT: 10,429

SR 2019 yorkanna r

Good

Over: KREUTZ CREEK

BORO OF HALLAM, York, PA

Built 1939 Load: 38.1 t ADT: 1,064

SR 3061

Good

Over: LITTLE CONEWAGO CREEK

1.5 MI NORTH OF US30, York, PA

Built 1989 Load: 38.1 t ADT: 946

CHESTNUT STREET

Good

Over: SCHUYLKILL RIVER

1MI.W.CITY HALL 3590A08, Philadelphia, PA

Built 1912 Load: 38.1 t ADT: 8,190

Woodland Avenue

Good

Over: CSX Railroad

At 60th Street - 36G03, Philadelphia, PA

Built 1994 Load: 38.1 t ADT: 9,325

SR 4029

Good

Over: OVER SOUTH CREEK

VILLAGE OF GILLETTE, Bradford, PA

Built 1996 Load: 38.1 t ADT: 324

TR 6 EB CASEY HWY

Good

Over: AYLESWORTH SPILLWAY & RD

ARCHBALD BORO AYLESWORTH, Lackawanna, PA

Built 1997 Load: 38.1 t ADT: 8,842

SR 1018 LANE ST

Good

Over: STERRY CREEK

JESSUP BORO .1M E SR 1016, Lackawanna, PA

Built 1995 Load: 38.1 t ADT: 2,033

TR 6 WB CASEY HWY

Good

Over: AYLESWORTH SPILLWAY & RD

ARCHBALD BORO AYLESWORTH, Lackawanna, PA

Built 1995 Load: 38.1 t ADT: 9,369

SR 0081 I-81 NB

Good

Over: OLYPHANT AVENUE

SCRANTON OVR OLYPHANT AVE, Lackawanna, PA

Built 1997 Load: 38.1 t ADT: 49,634

Showing 15,351-15,400 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.