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

BECKS RUN RD

Fair

Over: BECKS RUN

BC01 BECKS RUN NO. 1, Allegheny, PA

Built 1946 Load: 58.1 t ADT: 13,104

SR0422 WB

Fair

Over: SR8006 NB&SB

RTE 28 RAMPS WB, Armstrong, PA

Built 1970 Load: 58.1 t ADT: 5,614

SR8008 RAMP ONLY

Fair

Over: N/A

GRAFF RAMP, Armstrong, PA

Built 1980 Load: 58.1 t ADT: 2,622

SR 4032

Fair

Over: DUNNING CREEK

1 MI.W.OF REYNOLDSDALE, Bedford, PA

Built 1952 Load: 58.1 t ADT: 690

SR 78(LR 141)

Fair

Over: CROSSKILL CREEK

NEAR PA645 INTERCHANGE, Berks, PA

Built 1972 Load: 58.1 t ADT: 33,889

US422BUS (LR 149)

Fair

Over: US 422(LR 793)

PENN AVE OVER US422, Berks, PA

Built 1963 Load: 58.1 t ADT: 23,812

SR 2014

Fair

Over: BEAVERDAM BR JUNIATA R.

HOLLIDAYSBURG, Blair, PA

Built 1953 Load: 58.1 t ADT: 3,468

SR 8004(22E > 99N)

Fair

Over: SR 1002

1 MI.W.OF HOLLIDAYSBURG, Blair, PA

Built 1984 Load: 58.1 t ADT: 8,985

LINCOLN HIGHWAY

Fair

Over: NESHAMINY CREEK

NESHAMINY FALLS 41G03, Bucks, PA

Built 1933 Load: 58.1 t ADT: 102,483

EASTON ROAD

Fair

Over: CREAMERY ROAD

OTTSVILLE TINICUM 10G08, Bucks, PA

Built 1950 Load: 58.1 t ADT: 13,713

T-382 THREE DEGREE

Fair

Over: SOUTH BRANCH GLADE RUN

BTW SR3007 & T381, Butler, PA

Built 1915 Load: 58.1 t ADT: 100

SR 1025

Fair

Over: BURGOON RUN

2 MI.N.OF ST.AUGUSTINE, Cambria, PA

Built 1941 Load: 58.1 t ADT: 193

SR 2012

Fair

Over: BENS CREEK

1.5 MI.E.OF PORTAGE BORO., Cambria, PA

Built 1922 Load: 58.1 t ADT: 275

SR 4015

Fair

Over: LITTLE CHEST CREEK

PATTON BORO 5TH AVENUE, Cambria, PA

Built 1900 Load: 58.1 t ADT: 2,827

T-381 AMSITE ROAD

Fair

Over: SANDY RUN

1 MI.NW.OF ST.MICHAEL, Cambria, PA

Built 1936 Load: 58.1 t ADT: 75

SR 8016

Fair

Over: SR 3016 & HORNER ST.

BEDFORD ST.EXIT JOHNSTOWN, Cambria, PA

Built 1972 Load: 58.1 t ADT: 4,458

SR 1003

Fair

Over: BALD EAGLE CREEK

3 MI E MILESBURG, Centre, PA

Built 1985 Load: 58.1 t ADT: 645

KINGS HIGHWAY

Fair

Over: US 30 BY PASS

N.OF COATESVILLE 29F1, Chester, PA

Built 1961 Load: 58.1 t ADT: 2,931

SR 2030

Fair

Over: ROARING RUN

WOODLAND, Clearfield, PA

Built 1974 Load: 58.1 t ADT: 681

SR 42

Fair

Over: LICK RUN

1.25 MILES N OF IOLA, Columbia, PA

Built 1987 Load: 58.1 t ADT: 1,732

SR 1030 OLD VALLEY

Fair

Over: OVER WEST SHREVE RUN

BLOOMFIELD TOWNSHIP, Crawford, PA

Built 1965 Load: 58.1 t ADT: 415

SR 2010 FRANKLIN

Fair

Over: OVER LITTLE SUGAR CREEK

WAYNE TOWNSHIP, Crawford, PA

Built 1966 Load: 58.1 t ADT: 309

SR 3021 KRIDER RD

Fair

Over: OVER OUTLET CREEK

UNION TOWNSHIP, Crawford, PA

Built 1910 Load: 58.1 t ADT: 323

I-83; SR 0083

Fair

Over: RAMP X STA 7+35

LEMOYNE BORO, Cumberland, PA

Built 1982 Load: 58.1 t ADT: 85,221

RAMP L-N (NB ON)

Fair

Over: BROWNS RUN;ACCESS ROAD

NEAR VILLANOVA 14H09, Delaware, PA

Built 1990 Load: 58.1 t ADT: 11,141

SR 90 WB

Fair

Over: OVER T-666 ROHL ROAD

GREENFIELD TOWNSHIP, Erie, PA

Built 1959 Load: 58.1 t ADT: 10,929

LAMBERT-FOOTDALE

Fair

Over: DUNLAP CREEK

WEST OF FOOTEDALE, Fayette, PA

Built 2001 Load: 58.1 t ADT: 750

PA-997;Anthony Hwy

Fair

Over: E. Br.Little Antietam Ck

2 Mi. S. Waynesboro, Franklin, PA

Built 1988 Load: 58.1 t ADT: 3,634

PA 26

Fair

Over: STANDING STONE CREEK

1.3 M S OF CENTER UNION, Huntingdon, PA

Built 1964 Load: 58.1 t ADT: 2,790

PA 655

Fair

Over: NORTH SPRING CREEK

1.2 MILE NORTH OF TR 829, Huntingdon, PA

Built 1929 Load: 58.1 t ADT: 727

SR0422 EB

Fair

Over: TWO LICK CREEK

TWO LICK EB, Indiana, PA

Built 1970 Load: 58.1 t ADT: 4,058

T-617 CLAGHORN RD

Fair

Over: BRUSH CREEK

BTW SR56 & SR259, Indiana, PA

Built 1920 Load: 58.1 t ADT: 20

SR0310

Fair

Over: TROUT RUN

TROUT RUN NO.1, Jefferson, PA

Built 1926 Load: 58.1 t ADT: 1,456

SR 0006 TR 6 & 11

Fair

Over: NS RAILROAD

CLK SMT BO .2 M E SR 4011, Lackawanna, PA

Built 1986 Load: 58.1 t ADT: 12,152

PA 772; SR 0772

Fair

Over: PEQUEA CREEK

3 MI SE INTERCOURSE, Lancaster, PA

Built 1956 Load: 58.1 t ADT: 7,276

SR 1013

Fair

Over: MILL CREEK

1.5 MI. SE OF GROFFDALE, Lancaster, PA

Built 1937 Load: 58.1 t ADT: 2,386

SR 1047 Church St

Fair

Over: COCALICO CREEK

N.SIDE EPHRATA CHURCH ST., Lancaster, PA

Built 1986 Load: 58.1 t ADT: 4,563

SR 4015

Fair

Over: AMTRAK; BORO STREETS

MOUNT JOY BOROUGH, Lancaster, PA

Built 1942 Load: 58.1 t ADT: 6,410

T-824

Fair

Over: PA TPK (I-76)

WEST COCALICO TWP, Lancaster, PA

Built 1949 Load: 58.1 t ADT: 200

PA TPK (I-476)

Fair

Over: SR 0022 LR 771

LEHIGH VALLEY INTERCHANGE, Lehigh, PA

Built 1955 Load: 58.1 t ADT: 30,563

SR 0339 TR 339

Fair

Over: NESCOPECK CREEK

NESCOPECK TP .1M W SR3015, Luzerne, PA

Built 1958 Load: 58.1 t ADT: 1,486

SR 1008

Fair

Over: TOBY CREEK

LUZERNE BORO JCT SR 1013, Luzerne, PA

Built 1989 Load: 58.1 t ADT: 2,171

VALLEY ROAD

Fair

Over: SANDY RUN

1/2 MILE SW OF SR 2044, Luzerne, PA

Built 1995 Load: 58.1 t ADT: 75

S MECHANIC ST

Fair

Over: MARVIN CREEK

NEAR WILLOW ST INTERSECT, McKean, PA

Built 1993 Load: 58.1 t ADT: 1,500

WEADLEY ROAD(T363)

Fair

Over: SCHUYLKILL EXPRESSWAY

UPPER MERION TWP. 3367C08, Montgomery, PA

Built 1950 Load: 58.1 t ADT: 1,606

BURNSIDE AVENUE

Fair

Over: BRANCH OF KEPNER CREEK

1MI.N.W.MAIN ST. 3255A07, Montgomery, PA

Built 1986 Load: 58.1 t ADT: 5,007

PA TPK (RAMP AB)

Fair

Over: PA TPK (I-276)

FORT WASHINGTON INTERCHG, Montgomery, PA

Built 1983 Load: 58.1 t ADT: 34,335

I-78WB(LR 1045)

Fair

Over: WILLIAMS STREET

I78 WB OVER WILLIAMS ST., Northampton, PA

Built 1988 Load: 58.1 t ADT: 27,603

SR 1003

Fair

Over: LACKAWAXEN RIVER

LACKAWAXEN TWP INT TR 590, Pike, PA

Built 1960 Load: 58.1 t ADT: 560

SR 6-US 6

Fair

Over: LOSSEY RUN

1 MI E WALTON, Potter, PA

Built 1973 Load: 58.1 t ADT: 2,187

Showing 11,401-11,450 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.