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 4006

Fair

Over: DUNLAP CREEK

REDSTONE & MENALLEN TWPS., Fayette, PA

Built 1961 Load: 59.0 t ADT: 3,981

HAMPTON ROAD

Fair

Over: MILL RUN

WEST OF ROUTE 381, Fayette, PA

Built 1905 Load: 59.0 t ADT: 400

PA TPK (I-76)

Fair

Over: SR 641

FANNETT TWP, Franklin, PA

Built 1939 Load: 59.0 t ADT: 21,433

SR 2011

Fair

Over: NARROWS CREEK

BLAIRS MILLS, Huntingdon, PA

Built 1900 Load: 59.0 t ADT: 258

SR0286

Fair

Over: SR1004 EB&WB

RADIO TOWER, Indiana, PA

Built 1970 Load: 59.0 t ADT: 3,041

SR0286

Fair

Over: WEST BRANCH CUSH CREEK

HOOVERHURST NO.2, Indiana, PA

Built 1922 Load: 59.0 t ADT: 1,161

SR2011

Fair

Over: CANOE CREEK

ROSSITER NO.3, Jefferson, PA

Built 1932 Load: 59.0 t ADT: 1,595

SR 0006 TR 6 & 11

Fair

Over: Ackerly Creek

LAPLUME TWP .1 M W TR 438, Lackawanna, PA

Built 1953 Load: 59.0 t ADT: 10,037

SR 4033 Meadow vw

Fair

Over: BRUBAKERS RUN

2 MI.S. OF MASTERSONVILLE, Lancaster, PA

Built 1920 Load: 59.0 t ADT: 1,127

I-78 (LR 443)

Fair

Over: * SR3013 (LR 39082)

NEW SMITHVILLE, Lehigh, PA

Built 1958 Load: 59.0 t ADT: 35,420

SR 1007 (LR 153SP)

Fair

Over: CATASAUQUA CREEK

LEHIGH ST.CATASAUQUA, Lehigh, PA

Built 1913 Load: 59.0 t ADT: 5,758

SR 4035

Fair

Over: PINE CREEK

HUNTNGTN TP .4 M N TR 239, Luzerne, PA

Built 1968 Load: 59.0 t ADT: 682

SR 2001

Fair

Over: OVER SPRING CREEK

2 MI NE OF ELIMSPORT, Lycoming, PA

Built 1959 Load: 59.0 t ADT: 623

SR 18 NEW CASTLE R

Fair

Over: OVER HOG BACK RUN

SHENANGO TOWNSHIP, Mercer, PA

Built 1941 Load: 59.0 t ADT: 6,812

SR 642

Fair

Over: OVER MAUSES CREEK

VILLAGE OF MAUSDALE, Montour, PA

Built 1975 Load: 59.0 t ADT: 5,247

I-78EB(LR 1045)

Fair

Over: T-386(MOCKINGBIRD LANE)

OVER MOCKINGBIRD LANE, Northampton, PA

Built 1988 Load: 59.0 t ADT: 29,346

I-78WB(LR 1045)

Fair

Over: MOCKINGBIRD LANE(T-386)

OVER MOCKINGBIRD LANE, Northampton, PA

Built 1988 Load: 59.0 t ADT: 26,739

TWP RD T-648

Fair

Over: DELAWARE RUN

3 MI NE OF WATSONTOWN, Northumberland, PA

Built 1991 Load: 59.0 t ADT: 275

ON SHERMAN STREET

Fair

Over: SOUTH BRANCH PINE CREEK

GALETON BORO, Potter, PA

Built 1963 Load: 59.0 t ADT: 579

T-556 LEHMAN HL RD

Fair

Over: GENESEE FORK PINE CREEK

600 FT WEST OF T-462, Potter, PA

Built 1940 Load: 59.0 t ADT: 30

US 209 (LR 1103)

Fair

Over: SCHUYLKILL RIVER

MIDDLEPORT BORO, Schuylkill, PA

Built 1976 Load: 59.0 t ADT: 3,876

SR 4011 (LR 53027)

Fair

Over: RAUSCH CREEK

1.3 MI.S.OF VALLEY VIEW, Schuylkill, PA

Built 1912 Load: 59.0 t ADT: 1,257

SR 1033

Fair

Over: TRIB SEESE RUN

RUMMEL, Somerset, PA

Built 1991 Load: 59.0 t ADT: 1,747

SR 1025

Fair

Over: DENTON CREEK

GRT BND TP .2 M S SR 1023, Susquehanna, PA

Built 1938 Load: 59.0 t ADT: 200

T-761 (S. Bailey R

Fair

Over: SNAKE CREEK

1 MI S OF FRANKLIN FORKS, Susquehanna, PA

Built 1920 Load: 59.0 t ADT: 50

S.R.249

Fair

Over: NORTH BROOK

0.5MI NORTH OF AUSTINBURG, Tioga, PA

Built 1983 Load: 59.0 t ADT: 1,073

SR 1027 MAIN AVE.

Fair

Over: OVER SR 6 EB/WB DORCON

WARREN CITY, Warren, PA

Built 1976 Load: 59.0 t ADT: 3,838

T-444 IRVINE RUN R

Fair

Over: OVER IRVINE RUN

BROKENSTRAW TOWNSHIP, Warren, PA

Built 1970 Load: 59.0 t ADT: 75

SR 0070

Fair

Over: TWP RD 957 (OHIO AVE)

CANTON TOWNSHIP, Washington, PA

Built 1960 Load: 59.0 t ADT: 21,550

SR 0119

Fair

Over: SW PA R/R & PVT RD

EAST HUNTINGDON TOWNSHIP, Westmoreland, PA

Built 1977 Load: 59.0 t ADT: 14,236

SR 0119

Fair

Over: SR 3091 SR 0119

NEW STANTON BOROUGH, Westmoreland, PA

Built 1977 Load: 59.0 t ADT: 13,819

SR 0819

Fair

Over: BEAVER RUN

WASHINGTON & BELL TWPS., Westmoreland, PA

Built 1964 Load: 59.0 t ADT: 2,539

SR 3103

Fair

Over: Southwest PA Railroad

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 1995 Load: 59.0 t ADT: 2,323

ADAMS FALLS ROAD

Fair

Over: LINN RUN

100 EAST OF LINN RUN RD, Westmoreland, PA

Built 1936 Load: 59.0 t ADT: 135

PA 214; CHURCH ST.

Fair

Over: FISHEL CREEK

SEVEN VALLEYS BORO, York, PA

Built 1938 Load: 59.0 t ADT: 1,492

WOODHAVEN ROAD

Fair

Over: BYBERRY CREEK

500FT W.THORNTON 3373B4, Philadelphia, PA

Built 1964 Load: 59.0 t ADT: 74,505

STATE ROAD

Fair

Over: POQUESSING CREEK

PHILA-BUCKS LINE 3483C02, Philadelphia, PA

Built 1969 Load: 59.0 t ADT: 13,290

15th Street

Fair

Over: Roosevelt Blv Ext (US-1)

S of Cayuga Street 17H13, Philadelphia, PA

Built 1961 Load: 59.0 t ADT: 4,000

RAMP#1 EB OFF RMP.

Fair

Over: LANSDOWNE DRIVE

GIRARD AVE.INTCH. 3589J04, Philadelphia, PA

Built 1956 Load: 59.0 t ADT: 6,771

RAMP 2 E.B. ON RMP

Fair

Over: LANSDOWNE DRIVE

GIRARD AV.INTERCH.3589J04, Philadelphia, PA

Built 1958 Load: 59.0 t ADT: 8,356

SR 1007 BROWN HILL

Fair

Over: OVER INDIAN RUN

ATHENS TOWNSHIP, Crawford, PA

Built 1998 Load: 59.0 t ADT: 190

SR 6006 EIGHTH AVE

Fair

Over: LACKAWANNA RIVER

CARBONDALE CITY 8TH AVE, Lackawanna, PA

Built 1998 Load: 59.0 t ADT: 12,480

PA 191 ( LR 48035)

Fair

Over: LITTLE BUSHKILL CREEK

VILLAGE OF EDELMANS, Northampton, PA

Built 1998 Load: 59.0 t ADT: 7,054

US 219 SBL

Fair

Over: SR 8005 RAMPS C & D

OVER SR 8005, Somerset, PA

Built 2003 Load: 59.0 t ADT: 6,344

ARABELLA ST. BR #2

Fair

Over: ROBBS RUN

MCDONALD BOROUGH, Washington, PA

Built 1936 Load: 59.0 t ADT: 100

T-515 Kiwanis Road

Fair

Over: Walnut Run

2 mi NE I-81 Exit 77, Dauphin, PA

Built 2010 Load: 59.0 t ADT: 300

T-986 (Old Pit Rd)

Fair

Over: PA TPK (TOLL 43)

West of Uniontown, Fayette, PA

Built 2008 Load: 59.0 t ADT: 292

I-579 NB

Fair

Over: N-S RR PAT LRT PAT EBSWY

Veterans Bridge, Allegheny, PA

Built 1986 Load: 59.9 t ADT: 31,778

ALLEGHENY RIVER BL

Fair

Over: AVR RR SERVICE ROAD

1/4 MI. SOUTH OF SR 2080, Allegheny, PA

Built 1939 Load: 59.9 t ADT: 12,460

HOV

Fair

Over: STATE RDS. RR CITY STS..

Veterans Bridge, Allegheny, PA

Built 1986 Load: 59.9 t ADT: 1,550

Showing 11,501-11,550 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.