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

WATER STREET

Poor

Over: TOWN RUN

EAST END OF MCVEYTOWN, Mifflin, PA

Built 1922 Load: 34.5 t ADT: 132

PA 940 (LR 169)

Poor

Over: UPPER TUNKHANNOCK CREEK

6 MI. E.OF BLAKESLEE, Monroe, PA

Built 1958 Load: 34.5 t ADT: 5,329

SR 3015(LR 45006)

Poor

Over: ROSS COMMON CREEK

MT EATON ROAD, Monroe, PA

Built 1960 Load: 34.5 t ADT: 1,250

BETHLEHEM PIKE

Poor

Over: W. BR. NESHAMINY CREEK

S. CO. LINE 3032K8, Montgomery, PA

Built 1934 Load: 34.5 t ADT: 27,661

PLEASANT VIEW ROAD

Poor

Over: SANATOGA CREEK

SANATOGA 3139F03, Montgomery, PA

Built 1931 Load: 34.5 t ADT: 1,597

SUNNYBROOK ROAD

Poor

Over: SPROGELS RUN

.2MI.NE POTTSTOWN 3027C10, Montgomery, PA

Built 1934 Load: 34.5 t ADT: 500

SIMMONS ROAD

Poor

Over: GOSHENHOPPEN CREEK

.25 Mi SW PA-29 3029-C4, Montgomery, PA

Built 1927 Load: 34.5 t ADT: 300

RAMP B

Poor

Over: PRIVATE ROAD

RAMP SB 100 3138E01, Montgomery, PA

Built 1954 Load: 34.5 t ADT: 1,536

SR 0402 TR 402

Poor

Over: INDIAN CABIN RUN

PORTER TWP 2.2M N SR 2004, Pike, PA

Built 1932 Load: 34.5 t ADT: 1,584

SR 1011 (LR 53038)

Poor

Over: LOCUST CREEK

1 M. E. OF LOCUST LAKE, Schuylkill, PA

Built 1924 Load: 34.5 t ADT: 442

E MILL ST

Poor

Over: SWATARA CREEK

E MILL ST. IN PINE GROVE, Schuylkill, PA

Built 1939 Load: 34.5 t ADT: 300

SR 2047

Poor

Over: SWAMP CREEK

1 MI.S.OF GARRETT, Somerset, PA

Built 1921 Load: 34.5 t ADT: 1,910

SR 1017

Poor

Over: BREASTWORK RUN

2.5 MI.NW.NEW BALTIMORE, Somerset, PA

Built 1937 Load: 34.5 t ADT: 87

SR 1021

Poor

Over: MILLER RUN

1.5 MI.W.OF CAIRNBROOK, Somerset, PA

Built 1968 Load: 34.5 t ADT: 498

SR 3001

Poor

Over: CUCUMBER RUN

1.7 MI.E.OF DUMAS, Somerset, PA

Built 1938 Load: 34.5 t ADT: 185

SR 4029

Poor

Over: NORTH FORK BENS CREEK

1 MILE W. SULPHUR SPRINGS, Somerset, PA

Built 1927 Load: 34.5 t ADT: 100

T-322 HYDE ROAD

Poor

Over: OVER SPRING CREEK

SPRING CREEK TOWNSHIP, Warren, PA

Built 1996 Load: 34.5 t ADT: 100

SR 3009

Poor

Over: BUFFALO CREEK

EAST FINLEY TOWNSHIP, Washington, PA

Built 1945 Load: 34.5 t ADT: 246

SR 3043

Poor

Over: ROBINSON FORK

WEST FINLEY TOWNSHIP, Washington, PA

Built 1948 Load: 34.5 t ADT: 437

SR 4015

Poor

Over: BULGER RUN

SMITH TOWNSHIP, Washington, PA

Built 1912 Load: 34.5 t ADT: 739

SR 0191 TR 191

Poor

Over: EQUINUNK CREEK

BCKNGHM TWP .2M S SR 1023, Wayne, PA

Built 1932 Load: 34.5 t ADT: 938

SR4031 PLSNT VW DR

Poor

Over: BRANCH OF JOHNSON CREEK

MT PLESNT TP .2M N SR4008, Wayne, PA

Built 1937 Load: 34.5 t ADT: 164

SR 1051

Poor

Over: LITTLE CRABTREE CREEK

UNITY & HEMPFIELD TWPS., Westmoreland, PA

Built 1929 Load: 34.5 t ADT: 595

SR 4081

Poor

Over: LITTLE PUCKETA CREEK

CITY OF LOWER BURRELL, Westmoreland, PA

Built 1955 Load: 34.5 t ADT: 4,226

I-83; SR 0083

Poor

Over: 462; Market

MARKET ST & I-83 EXIT-19, York, PA

Built 1959 Load: 34.5 t ADT: 51,452

CEMETERY AVENUE

Poor

Over: CSX TRANSPORTATION

CEMETERY AVENUE 3699-C2, Philadelphia, PA

Built 1886 Load: 34.5 t ADT: 2,529

SR 1037

Poor

Over: TRIB TO DUBOIS CREEK

GRT BEND TWP 100S SR1022, Susquehanna, PA

Built 2002 Load: 34.5 t ADT: 41

DERR ROAD

Poor

Over: TRIB LITTLE NORTHKILL CK

WEST OF RTE. 183, Berks, PA

Built 1989 Load: 34.5 t ADT: 75

Bridge St.

Poor

Over: Thoms Run

100 SW of Thoms Run Rd, Allegheny, PA

Built 1990 Load: 34.5 t ADT: 25

Walnut Street

Poor

Over: Trib to Bushy Run

Penn Township, Westmoreland, PA

Built 1989 Load: 34.5 t ADT: 1,000

MAPLE STREET

Poor

Over: Smith Creek

BRIDGE OVER SMITH CREEK, Susquehanna, PA

Built 1964 Load: 34.5 t ADT: 20

PENN AV

Poor

Over: EAST BUSWAY N-S RR

P50002 PENN AVE BRDG-EB03, Allegheny, PA

Built 1981 Load: 35.4 t ADT: 15,057

PINK HOUSE RD

Poor

Over: LITTLE SEWICKLEY CR SB

SS01 NR FERN HOLLOW RD, Allegheny, PA

Built 1920 Load: 35.4 t ADT: 51

MILL ST

Poor

Over: BULL CREEK

464001 MILL STREET, Allegheny, PA

Built 1989 Load: 35.4 t ADT: 250

RAMP R

Poor

Over: RAMP S E F AND BRADY ST

Birmingham Bridge, Allegheny, PA

Built 1956 Load: 35.4 t ADT: 5,659

PA TPK (I-70&I-76)

Poor

Over: SR 2019(LR 05036)

LUTZVILLE, Bedford, PA

Built 1939 Load: 35.4 t ADT: 36,252

T381 Negley Spring

Poor

Over: PINEY CREEK

.4 MI.NW.OF CLAPPERTOWN, Blair, PA

Built 1930 Load: 35.4 t ADT: 31

SR 1049

Poor

Over: PRINCE HOLLOW RUN

0.1 MI. EAST OF LR 08099, Bradford, PA

Built 1958 Load: 35.4 t ADT: 739

BETHLEHEM PIKE

Poor

Over: BR W BR NESHAMINY CREEK

.5MI.S.LR.09112 27B12, Bucks, PA

Built 1934 Load: 35.4 t ADT: 43,044

TYBURN ROAD

Poor

Over: ROCK RUN

FALLSINGTON 38J09, Bucks, PA

Built 1954 Load: 35.4 t ADT: 10,198

SR3022

Poor

Over: BRUSH CREEK

ROCHESTER ROAD NO.1, Butler, PA

Built 1965 Load: 35.4 t ADT: 18,268

SR 26-PA 26

Poor

Over: SEDA-COG/NIT& BALD EAGLE

HOWARD, Centre, PA

Built 1967 Load: 35.4 t ADT: 2,413

FAIRVIEW ROAD

Poor

Over: MARSH CREEK

NR. FAIRVIEW CHURCH 11K9, Chester, PA

Built 1939 Load: 35.4 t ADT: 1,831

DOWLIN FORGE ROAD

Poor

Over: SHAMONA CREEK

NEAR DOWLIN 3471-J2, Chester, PA

Built 1942 Load: 35.4 t ADT: 840

SR 0080 WB

Poor

Over: SR 4005 & CANOE CREEK

CANOE CREEK WB, Clarion, PA

Built 1966 Load: 35.4 t ADT: 9,530

US 22 WB; SR 0022

Poor

Over: SUSQUEHANNA RIVER

CLARKS FERRY, Dauphin, PA

Built 1986 Load: 35.4 t ADT: 27,209

PA 230; SR 0230

Poor

Over: ASYLUM RUN

HARRISBURG, Dauphin, PA

Built 1950 Load: 35.4 t ADT: 20,782

MEDIA BY-PASS

Poor

Over: RIDLEY CK.RD;RIDLEY CK.

1.5MI.S.PA 252 33K04, Delaware, PA

Built 1959 Load: 35.4 t ADT: 34,005

T-557 TEABERRY RD.

Poor

Over: IRON RUN

.1 MI SW OF SR 2008 INT., Elk, PA

Built 1980 Load: 35.4 t ADT: 395

SR 4104 BARGAIN RD

Poor

Over: OVER SR 79 NB/SB

MCKEAN TOWNSHIP, Erie, PA

Built 1969 Load: 35.4 t ADT: 1,689

Showing 22,651-22,700 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.