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

T410 (MONROE BR.2)

Poor

Over: FRENCH RUN

1.5 Mile West of Monroe, Bradford, PA

Built 1950 Load: 21.8 t ADT: 75

TR-348 Twp. BR #2

Poor

Over: MILLSTONE CREEK

5.4 MI. NW. OF NEW ALBANY, Bradford, PA

Built 1977 Load: 21.8 t ADT: 50

BARCLAY STREET

Poor

Over: NEWTOWN CREEK

0.2 Mi E SR532 3149-K5, Bucks, PA

Built 1917 Load: 21.8 t ADT: 500

SHEEPHOLE ROAD

Poor

Over: TINICUM CREEK

1.5 MI E OF SR611 2698-G4, Bucks, PA

Built 1932 Load: 21.8 t ADT: 70

FALCON DRIVE

Poor

Over: ST CLAIR RUN

1.5 MI.N.OF WESTMONT, Cambria, PA

Built 1978 Load: 21.8 t ADT: 103

PA 93

Poor

Over: QUAKAKE CREEK

HUDSONDALE, Carbon, PA

Built 1927 Load: 21.8 t ADT: 3,899

PA 443(LR 13002)

Poor

Over: MAHONING CREEK

BLAKESLEE BLVD., Carbon, PA

Built 1945 Load: 21.8 t ADT: 13,842

PA 534(LR 13018)

Poor

Over: BLACK CREEK

.5 MI.S.OF LEHIGH TANNERY, Carbon, PA

Built 1940 Load: 21.8 t ADT: 470

BLUE MOUNTAIN RD

Poor

Over: LIZARD CREEK

S. OF SR 895 NR ASHFIELD, Carbon, PA

Built 1992 Load: 21.8 t ADT: 300

COUNTY LN RD

Poor

Over: MAHONING CREEK

DAVIS BRIDGE, Carbon, PA

Built 1910 Load: 21.8 t ADT: 150

T527 LAUREL RUN RD

Poor

Over: LAUREL RUN

1 MILE EAST OF SR 153, Clearfield, PA

Built 1915 Load: 21.8 t ADT: 30

T-721 CTY BR#148

Poor

Over: FISHING CREEK

0.7 MI. S. OF COLES CREEK, Columbia, PA

Built 1977 Load: 21.8 t ADT: 50

SR 2017 FAUNCETOWN

Poor

Over: OVER SUGAR CREEK

TROY TOWNSHIP, Crawford, PA

Built 1950 Load: 21.8 t ADT: 516

T-795 FISH FLATS R

Poor

Over: OVER OIL CREEK EAST BR.

3 MI. S.W. SPARTANSBURG, Crawford, PA

Built 1950 Load: 21.8 t ADT: 250

CRUM LYNNE ROAD

Poor

Over: CSX TRANSPORTATION

0.4 Mi NW US-13 ADC 28-A5, Delaware, PA

Built 1947 Load: 21.8 t ADT: 1,437

SR 0690 TR 690

Poor

Over: VAN BRUNT CREEK

MOSCOW BORO 1.2M W TR 435, Lackawanna, PA

Built 1940 Load: 21.8 t ADT: 3,999

SR 2013

Poor

Over: MEADOW BROOK

CLIFTON TWP 500 W TR 435, Lackawanna, PA

Built 1961 Load: 21.8 t ADT: 1,451

SR 3006

Poor

Over: GARDNER CREEK

NEWTON TWP .5 M E SR 3001, Lackawanna, PA

Built 1951 Load: 21.8 t ADT: 232

NORTH MAIN AVENUE

Poor

Over: LEGGETTS CREEK

NEAR JOHNSON COLLEGE, Lackawanna, PA

Built 1900 Load: 21.8 t ADT: 10,771

Twp Rd

Poor

Over: MCCREARY RUN

1 MI NO OF OAK HILL, Lancaster, PA

Built 1949 Load: 21.8 t ADT: 342

HERNLEY ROAD T-855

Poor

Over: CHIQUES CREEK

250 FT. WEST OF T-589, Lancaster, PA

Built 1920 Load: 21.8 t ADT: 410

PULASKI ROAD

Poor

Over: TRIB.TO SHENANGO RIVER

3.0 MI SE OF SR 208, Lawrence, PA

Built 1989 Load: 21.8 t ADT: 247

HOOVER RD

Poor

Over: SIFTON RUN

037025 JOHN J SUSKO BRDG, Lawrence, PA

Built 1984 Load: 21.8 t ADT: 500

BALPH AV

Poor

Over: BIG RUN

037001 BALPH AVE-NEW CAST, Lawrence, PA

Built 1956 Load: 21.8 t ADT: 25

SR 4009 (LR 39057)

Poor

Over: MILL CREEK

HOLLENBACHS BRIDGE, Lehigh, PA

Built 1912 Load: 21.8 t ADT: 667

DEVONSHIRE ROAD

Poor

Over: LITTLE LEHIGH CREEK

SALISBURY CHURCH BRIDGE, Lehigh, PA

Built 1870 Load: 21.8 t ADT: 500

ASH LANE

Poor

Over: TOAD CREEK

WEST OF ALBURTIS, Lehigh, PA

Built 1966 Load: 21.8 t ADT: 400

SPRINGHOUSE ROAD

Poor

Over: ONTELAUNEE CREEK

MOSSERVILLE, Lehigh, PA

Built 1834 Load: 21.8 t ADT: 100

GUN CLUB ROAD

Poor

Over: ONTELAUNEE CREEK

WEST OF NEW TRIPOLI, Lehigh, PA

Built 1885 Load: 21.8 t ADT: 50

LEHIGH PARKWAY E.

Poor

Over: LITTLE LEHIGH CREEK

SCHREIBERS BRIDGE, Lehigh, PA

Built 1828 Load: 21.8 t ADT: 1,000

WALNUT STREET

Poor

Over: CEDAR CREEK

ST ELMO ST & READING ROAD, Lehigh, PA

Built 1824 Load: 21.8 t ADT: 1,000

SR 0081 I-81 NB

Poor

Over: NRFLK STHRN RR

HAZLE TWP 1 M S TR 924, Luzerne, PA

Built 1967 Load: 21.8 t ADT: 16,458

SR 0309 TR 309 SB

Poor

Over: SR 2022 RAILRD N.WASHING

WILKESBARRE OVER SR 2022, Luzerne, PA

Built 1984 Load: 21.8 t ADT: 23,706

SR 2004 RIVER ST

Poor

Over: MILL CREEK

WLKS BRE CTY .4M E SR2009, Luzerne, PA

Built 1929 Load: 21.8 t ADT: 17,022

SR 2047

Poor

Over: BIG WAPWALLOPEN CREEK

WRIGHT TWP .7 M N SR 2045, Luzerne, PA

Built 1919 Load: 21.8 t ADT: 1,439

T-336 HIGH STREET

Poor

Over: MINARD RUN

600 FT SOUTH OF SR 770, McKean, PA

Built 1931 Load: 21.8 t ADT: 250

NORTH 4TH STREET

Poor

Over: FOSTER BROOK

400 FT NORTH OF SR 346, McKean, PA

Built 1980 Load: 21.8 t ADT: 10

PA 715(LR 45041)

Poor

Over: MCMICHAELS CREEK

4.2 M.N.OF BRODHEADSVILLE, Monroe, PA

Built 1919 Load: 21.8 t ADT: 2,346

SR 3002(LR 45052)

Poor

Over: AQUASHICOLA CREEK

2 MI.W.OF SR 3015, Monroe, PA

Built 1925 Load: 21.8 t ADT: 340

SR 3023 (LR 949)

Poor

Over: MCMICHAEL CREEK

MIDDLE EASTON BELMONT PK, Monroe, PA

Built 1910 Load: 21.8 t ADT: 1,114

T-221

Poor

Over: MCMICHAEL CREEK

0.7 MI. W OF SCIOTA, Monroe, PA

Built 1986 Load: 21.8 t ADT: 427

FOUNDRY RD T-231

Poor

Over: APPENZELL CREEK

SANDHILL, Monroe, PA

Built 1915 Load: 21.8 t ADT: 187

COUNTY BRIDGE RD

Poor

Over: MARSHALLS CREEK

1.3 MI S MARSHALLS CREEK, Monroe, PA

Built 1990 Load: 21.8 t ADT: 320

EB COUNTY LINE EXP

Poor

Over: NORTH GULPH ROAD

VALLEY FORGE 27J12/3366D5, Montgomery, PA

Built 1965 Load: 21.8 t ADT: 46,888

STONE BRIDGE ROAD

Poor

Over: HOKENDAUQUA CREEK

NEAR KREIDERSVILLE, Northampton, PA

Built 1910 Load: 21.8 t ADT: 30

SR3001 HEMLOCK GRV

Poor

Over: E BR WALLENPAUPACK CREEK

GREENE TWP 300 S SR 3006, Pike, PA

Built 1958 Load: 21.8 t ADT: 1,683

SR 4017

Poor

Over: BELL RUN

5 MI S SHINGLEHOUSE, Potter, PA

Built 1953 Load: 21.8 t ADT: 234

US 209(LR 162)

Poor

Over: PANTHER CREEK

TAMAQUA BORO E.BROAD ST., Schuylkill, PA

Built 1902 Load: 21.8 t ADT: 6,291

SR 4041 (LR 53118)

Poor

Over: SHENANDOAH CREEK

BORO OF GIRARDVILLE, Schuylkill, PA

Built 1900 Load: 21.8 t ADT: 667

SILVERTON RD

Poor

Over: WEST CREEK

SOUTH OF LLEWELLYN, Schuylkill, PA

Built 1935 Load: 21.8 t ADT: 20

Showing 21,451-21,500 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.