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

SWINDELL BR

Poor

Over: I279 HOV RAMP G EAST ST

109 SWINDELL BRIDGE, Allegheny, PA

Built 1930 Load: 26.3 t ADT: 5,700

TRUMBULL DR

Poor

Over: W & LE RAILROAD

435001 4300 W/I-279 INT, Allegheny, PA

Built 1956 Load: 26.3 t ADT: 2,500

WALLACE AV

Poor

Over: BRUSH CREEK

491001 TRAFFORD BOROUGH, Westmoreland, PA

Built 1994 Load: 26.3 t ADT: 100

T-372 (TWP. BR#4)

Poor

Over: SOUTH BR. MILLSTONE CREE

ST GM LND 36 OVERTON TWP, Bradford, PA

Built 1977 Load: 26.3 t ADT: 50

KELLERS CHURCH RD.

Poor

Over: DEEP RUN

BEDMINSTER TWP. 16C02, Bucks, PA

Built 1933 Load: 26.3 t ADT: 481

LAKELAND AVENUE

Poor

Over: MILL CREEK

.75MI.NW BRISTOL 43A08, Bucks, PA

Built 1954 Load: 26.3 t ADT: 600

SR4008

Poor

Over: SLIPPERY ROCK CREEK

WEST LIBERTY NO.2, Butler, PA

Built 1962 Load: 26.3 t ADT: 605

T-360 NEEDLE POINT

Poor

Over: CONNOQUENESSING CR

0.1M N. Community Park Rd, Butler, PA

Built 1990 Load: 26.3 t ADT: 100

T-411 ASH STOP RD.

Poor

Over: CONNOQUENESSING CREEK

1500 FT E OF SR 68, Butler, PA

Built 1902 Load: 26.3 t ADT: 250

PARKER STREET

Poor

Over: BEAR CREEK

1 MI FROM INT W/ SR0268, Butler, PA

Built 1935 Load: 26.3 t ADT: 50

ROUTE 30 BY-PASS

Poor

Over: WEST BR BRANDYWINE CREEK

NEAR VALLEY 28J2, Chester, PA

Built 1963 Load: 26.3 t ADT: 29,503

MANOR ROAD

Poor

Over: EAST BR BRANDYWINE CREEK

EAST OF WYEBROOKE 11A9, Chester, PA

Built 1950 Load: 26.3 t ADT: 3,514

NEWARK ROAD

Poor

Over: MUDDY CREEK

UPPER OXFORD TWP. 43F01, Chester, PA

Built 1932 Load: 26.3 t ADT: 2,341

BIRCH RUN ROAD

Poor

Over: BIRCH RUN

NEAR BIRCHRUNVILLE 13F6, Chester, PA

Built 1923 Load: 26.3 t ADT: 241

WAGONTOWN ROAD

Poor

Over: RAILROAD WILMINGTON BR.

NEAR COATESVILLE 28H3, Chester, PA

Built 1916 Load: 26.3 t ADT: 964

T-385 EAGLE FURNAC

Poor

Over: CANOE CREEK

0.2 mi E int w/ SR 3007, Clarion, PA

Built 1960 Load: 26.3 t ADT: 50

SR 3014

Poor

Over: CHEST CREEK

WAUKESHA, Clearfield, PA

Built 1886 Load: 26.3 t ADT: 157

S.T.P. ACCESS ROAD

Poor

Over: SANDY LICK CREEK

500 FT NE OF T350, Clearfield, PA

Built 1970 Load: 26.3 t ADT: 35

SR 6 FRENCH CK.PWY

Poor

Over: OVER FRENCH CREEK

WOODCOCK TOWNSHIP, Crawford, PA

Built 1937 Load: 26.3 t ADT: 5,894

SR 6 CHURCH ST.

Poor

Over: OVER FRENCH CREEK TRIB

VENANGO BOROUGH, Crawford, PA

Built 1938 Load: 26.3 t ADT: 3,977

T-828 OLD GRADE RD

Poor

Over: OVER E.BR.MUDDY CREEK

2 MI. NW. TYRONVILLE, Crawford, PA

Built 1960 Load: 26.3 t ADT: 50

MULBERRY STREET

Poor

Over: OVER MILL RUN

MULBERRY ST. MEADVILLE, Crawford, PA

Built 1970 Load: 26.3 t ADT: 1,500

SR 1017 HONEYMOON

Poor

Over: TRIB TO PINE CREEK

3 MI. E. GRATZ, Dauphin, PA

Built 1910 Load: 26.3 t ADT: 232

CHESTER PIKE

Poor

Over: CRUM CREEK

CRUM CREEK 43K02, Delaware, PA

Built 1926 Load: 26.3 t ADT: 16,625

WANAMAKER AVENUE

Poor

Over: I-95 AND RAMPS

OVER I-95;TINICUM 44F01, Delaware, PA

Built 1975 Load: 26.3 t ADT: 41,530

T-826 MILL ROAD

Poor

Over: BROKENSTRAW CREEK

750 EAST OF PLANK RD, Erie, PA

Built 1979 Load: 26.3 t ADT: 120

SR 4004

Poor

Over: CONODOGUINET CREEK

4.0 MI.W.UPPER STRASBUR, Franklin, PA

Built 1825 Load: 26.3 t ADT: 559

SR 4006 Stone Br.

Poor

Over: W BR CONOCOCHEAGUE CREEK

1MI N OF WILLOW HILL, Franklin, PA

Built 1907 Load: 26.3 t ADT: 475

CORNERTOWN RD

Poor

Over: CONOCOCHEAGUE CREEK

0.2 MI EAST OF SR 11, Franklin, PA

Built 1961 Load: 26.3 t ADT: 600

SR 0088

Poor

Over: TRIB. MONONGAHELA RIVER

DUNKARD TOWNSHIP, Greene, PA

Built 1922 Load: 26.3 t ADT: 3,746

T377 NEWBURG PRK R

Poor

Over: GREAT TROUGH CREEK

3/4 MI.E.OF NEWBURG, Huntingdon, PA

Built 1917 Load: 26.3 t ADT: 24

SR 2003

Poor

Over: DOE RUN

0.5 MI N MEXICO, Juniata, PA

Built 1936 Load: 26.3 t ADT: 208

PA 340; Old Phila

Poor

Over: Mill Creek

0.7 mi. East of Smoketown, Lancaster, PA

Built 1951 Load: 26.3 t ADT: 12,096

SR 1053 Peartown

Poor

Over: COCALICO CREEK

1 MI SW BLAINSPORT, Lancaster, PA

Built 1909 Load: 26.3 t ADT: 486

WEST WASHINGTON ST

Poor

Over: NCIR / ISS RAILROAD

1/2 MI. WEST OF SR 0018, Lawrence, PA

Built 1924 Load: 26.3 t ADT: 7,349

HAMILTON STREET

Poor

Over: JORDAN CREEK & RJCN

EAST OF FOURTH STREET, Lehigh, PA

Built 1973 Load: 26.3 t ADT: 13,600

I-80 EB

Poor

Over: PA 93 TR 93 EXIT 256

SUGARLOAF TWP OVER TR 93, Luzerne, PA

Built 1965 Load: 26.3 t ADT: 14,363

I-81 SB

Poor

Over: NESCOPECK CREEK

BUTLER TWP 1.5 M S I-80, Luzerne, PA

Built 1965 Load: 26.3 t ADT: 14,591

SR 0239 TR 239

Poor

Over: PINE CREEK

HUNTINGTON TP .2MW SR4035, Luzerne, PA

Built 1928 Load: 26.3 t ADT: 1,278

SR 2100 LIDYS RD

Poor

Over: SR 0315 TR 315

DUPONT 640 N TR 315, Luzerne, PA

Built 1955 Load: 26.3 t ADT: 464

SR 6309 NB

Poor

Over: ASHLEY PARK LLC

ASHLEY BO .2 M N SR 2003, Luzerne, PA

Built 1966 Load: 26.3 t ADT: 11,085

DEVILS ELBOW ROAD

Poor

Over: PINE CREEK

EAST OF FAIRMOUNT SPRINGS, Luzerne, PA

Built 1977 Load: 26.3 t ADT: 30

SR 246-PA 246

Poor

Over: BAKER RUN

RIXFORD, McKean, PA

Built 1925 Load: 26.3 t ADT: 1,037

BRIDGE 2339 SERVIC

Poor

Over: OVER PINE RUN

SERVICE AVE SHARON, Mercer, PA

Built 1951 Load: 26.3 t ADT: 1,637

WHITES MILL ROAD

Poor

Over: RIDGE VALLEY CRK

NR.BUCKS CTY.LINE 08A04, Montgomery, PA

Built 1928 Load: 26.3 t ADT: 442

COLLEGEVILLE ROAD

Poor

Over: BRANCH SKIPPACK CREEK

1MI.S.OF PA 73 3142C07, Montgomery, PA

Built 1830 Load: 26.3 t ADT: 2,705

LEXINGTON DRIVE

Poor

Over: TRIB. LITTLE PINE RUN

2.5MI.NE.FT EASH 3258-C5, Montgomery, PA

Built 1988 Load: 26.3 t ADT: 100

SR 3016(LR48068)

Poor

Over: HOKENDAUQUA CREEK

INDIAN TRAIL ROAD, Northampton, PA

Built 1939 Load: 26.3 t ADT: 2,776

T-506 (8th Street)

Poor

Over: Zerbe Run

TREVORTON, Northumberland, PA

Built 1904 Load: 26.3 t ADT: 400

SR1006 KNEALING RD

Poor

Over: SHOHOLA CREEK

SHOHOLA TWP 900 E TR 434, Pike, PA

Built 1959 Load: 26.3 t ADT: 345

Showing 21,751-21,800 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.