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

SR 3004

Poor

Over: BEAVER RUN

2 MI E STIFFLERTOWN, Clearfield, PA

Built 1937 Load: 51.7 t ADT: 432

T-794 DEWEY ROAD

Poor

Over: OVER E.BR.MUDDY CREEK

1.7 MI. SE.LITTLE COOLEY, Crawford, PA

Built 1960 Load: 51.7 t ADT: 50

T-436 TOWER ROAD

Poor

Over: SOUTH FORK TENMILE CREEK

WEST OF ROGERSVILLE, Greene, PA

Built 1979 Load: 51.7 t ADT: 25

T-315 BELL RD

Poor

Over: BLACKLEGS CREEK

BTW T316 &SR0286, Indiana, PA

Built 1979 Load: 51.7 t ADT: 120

SR 3013

Poor

Over: WAPWALLOPEN CREEK

HLLNBACK TWP 797N SR3012, Luzerne, PA

Built 1961 Load: 51.7 t ADT: 167

T-387 VALLEY TWP

Poor

Over: MAHONING CREEK

1.8 MI. N OF KASEVILLE, Montour, PA

Built 1974 Load: 51.7 t ADT: 250

RAILROAD ST

Poor

Over: MAHANOY CREEK

RAILROAD ST IN GILBERTON, Schuylkill, PA

Built 1910 Load: 51.7 t ADT: 20

SR 1061

Poor

Over: BEAVER RUN

SALEM TOWNSHIP, Westmoreland, PA

Built 1930 Load: 51.7 t ADT: 696

INTERSTATE 95 N.B.

Poor

Over: FAIRMOUNT AVENUE

.1MI.N.SPRING GAR.3590H07, Philadelphia, PA

Built 1975 Load: 51.7 t ADT: 80,788

T-638 SNAKE RD

Poor

Over: SILVER CREEK

1.35 MI NE OF FAIRVIEW RD, Butler, PA

Built 2004 Load: 51.7 t ADT: 50

RAMP A TARENTUM BR

Poor

Over: 4TH AVE RAMPD NS RR

Tarentum Bridge, Allegheny, PA

Built 1952 Load: 52.6 t ADT: 16,924

SR 183(LR 310)

Poor

Over: NORFOLK/SOUTHERN RR

SCHUYLKILL AVE SB ONE-WAY, Berks, PA

Built 1916 Load: 52.6 t ADT: 6,625

BRIDGE 3008 T-652

Poor

Over: OVER INDIAN RUN

CREEK RD. SPRINGFIELD TWP, Mercer, PA

Built 1988 Load: 52.6 t ADT: 81

SR 0006 TR 6

Poor

Over: SAWKILL CREEK

DINGMAN TWP 2.3 M W I-84, Pike, PA

Built 1957 Load: 52.6 t ADT: 8,574

SR 2022(LR 53016)

Poor

Over: LITTLE SCHUYLKILL RIVER

VILLAGE OF HECLA, Schuylkill, PA

Built 1927 Load: 52.6 t ADT: 242

SR 1009 Pines Rd.

Poor

Over: FISHING CREEK

.1 MILE WEST OF GOLDSBORO, York, PA

Built 1949 Load: 52.6 t ADT: 1,907

INTERSTATE 95 S.B.

Poor

Over: FAIRMOUNT AVENUE

.1MI.N.SPRG.GARD. 3590H07, Philadelphia, PA

Built 1975 Load: 52.6 t ADT: 66,507

T-840 HOGBACK W.RD

Poor

Over: OVER KELLY RUN

5 MI.E.CAMBRIDGE SPRINGS, Crawford, PA

Built 1976 Load: 53.5 t ADT: 50

SR 2004

Poor

Over: LICK RUN

1.5 MI.W.OF MEADOW GAP, Huntingdon, PA

Built 1937 Load: 53.5 t ADT: 179

SR4006

Poor

Over: NORTH FORK CREEK

MOORE, Jefferson, PA

Built 1961 Load: 53.5 t ADT: 185

PAPER MILL RD

Poor

Over: NESHANNOCK CREEK

037006 CITY OF NEW CASTLE, Lawrence, PA

Built 1965 Load: 53.5 t ADT: 50

T-766 POPPY ROAD

Poor

Over: (S-C)SHAMOKIN VALLEY RR

0.7 MILE N.W. OF SHAMROCK, Northumberland, PA

Built 1903 Load: 53.5 t ADT: 50

SR 2001 MILFORD RD

Poor

Over: HORNBECK CREEK

DELAWARE TWP .6M S SR2002, Pike, PA

Built 1936 Load: 53.5 t ADT: 867

SR 2061

Poor

Over: NORTH BRANCH FISHPOT RUN

EAST BETHLEHEM TOWNSHIP, Washington, PA

Built 1942 Load: 53.5 t ADT: 350

SR 1007

Poor

Over: TUBMILL CREEK

SAINT CLAIR TOWNSHIP, Westmoreland, PA

Built 1937 Load: 53.5 t ADT: 89

ALLEY NO 2

Poor

Over: JACKS RUN

150 WEST OF S URANIA AVE, Westmoreland, PA

Built 1915 Load: 53.5 t ADT: 100

SR 2018

Poor

Over: OTTER CREEK

LUCKY, York, PA

Built 1907 Load: 53.5 t ADT: 306

INDUSTRIAL HIGHWAY

Poor

Over: THREE MILE RUN

.2 E.BLCKBRN PRK 3 MI RUN, York, PA

Built 1970 Load: 53.5 t ADT: 7,500

49th Street

Poor

Over: SEPTA

S of Chester Ave - 36J01, Philadelphia, PA

Built 1894 Load: 53.5 t ADT: 5,000

T-456 DESKO RD

Poor

Over: N. Br of Browns Run

German Township, Fayette, PA

Built 1955 Load: 53.5 t ADT: 50

CLINTON RD

Poor

Over: BR.NORTH BR.ROBINSON RUN

200 WEST OF SR 3063, Allegheny, PA

Built 1953 Load: 54.4 t ADT: 2,845

SR 1005 & SR 2046

Poor

Over: LEHIGH RIVER

LEHIGH TANNERY, Carbon, PA

Built 1930 Load: 54.4 t ADT: 213

T-334 BRUSH VALLEY

Poor

Over: SPRING CREEK

200FT FROM INT OF SR 2004, Centre, PA

Built 1977 Load: 54.4 t ADT: 330

SR 969-PA 969

Poor

Over: BELL RUN

BELLS LANDING, Clearfield, PA

Built 1971 Load: 54.4 t ADT: 417

T-425 DEETER H.RD.

Poor

Over: OVER LT.SUGAR CREEK

2.5 MI.S.OF FAUNCETOWN, Crawford, PA

Built 1950 Load: 54.4 t ADT: 250

SR 3008

Poor

Over: JACOBS CREEK

NICHOLSON TOWNSHIP, Fayette, PA

Built 1911 Load: 54.4 t ADT: 94

SOLANCO DR T-367

Poor

Over: TRIB TO STEWART RUN

.4 M E OF US 222, Lancaster, PA

Built 1921 Load: 54.4 t ADT: 155

SR 2018(LR 39026)

Poor

Over: BRANCH OF SWABIA CREEK

MACUNGIE-LEHIGH ST., Lehigh, PA

Built 1929 Load: 54.4 t ADT: 1,840

T-523 HIMROD ROAD

Poor

Over: LEBOEUF CREEK

1300 FT EAST OF SR 0197, Erie, PA

Built 1960 Load: 54.4 t ADT: 131

T-517 KRAMER RD

Poor

Over: BIG RUN

0.2 MILE SE OF SR 2019, Jefferson, PA

Built 1988 Load: 55.3 t ADT: 50

MANATAWNY STREET

Poor

Over: BR. MANATAWNY CREEK

POTTSTOWN 11D10/3138F1, Montgomery, PA

Built 1964 Load: 55.3 t ADT: 5,764

BEAR VALLEY RD.

Poor

Over: WEST BRANCH RAUSCH CREEK

BEAR VLY.RD NR.PORTER TWP, Schuylkill, PA

Built 1973 Load: 55.3 t ADT: 300

SR 4041

Poor

Over: TRIB.STONY CREEK

.5 MI.W.OF TIREHILL, Somerset, PA

Built 1930 Load: 55.3 t ADT: 815

CIRCLE AVE

Poor

Over: CONESTOGA RIVER

100 FT EAST OF S BROAD ST, Lancaster, PA

Built 2000 Load: 55.3 t ADT: 280

MEMORIAL LINKS RD.

Poor

Over: WEST BR LACKAWAXEN RIVER

0.6 MILES NW OF SR 170, Wayne, PA

Built 2010 Load: 55.3 t ADT: 20

RIVER ROAD (PA 32)

Poor

Over: DELAWARE CANAL

GOLDEN PHEASANT 2699-J02, Bucks, PA

Built 1932 Load: 55.7 t ADT: 2,608

TOWNSHIP ROAD 616

Poor

Over: BROWNS RUN

WEST OF JEFFERSON, Greene, PA

Built 1908 Load: 56.2 t ADT: 30

T526 PEACHEY ROAD

Poor

Over: LAUREL RUN

.5 MI.W.OF MCALEVYS FORT, Huntingdon, PA

Built 1992 Load: 56.2 t ADT: 20

SR 4027 (LR 39060)

Poor

Over: JORDAN CREEK

GAME PRESERVE ROAD, Lehigh, PA

Built 1961 Load: 56.2 t ADT: 253

HILLSIDE ROAD CR16

Poor

Over: TOBYS CREEK

0.1 MILES NW OF SR 309, Luzerne, PA

Built 1970 Load: 56.2 t ADT: 5,783

Showing 23,151-23,200 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.