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

SUMMIT PARK DRIVE

Poor

Over: MONTOUR TRAIL & RUN

.3 MI SW OF US RT 60, Allegheny, PA

Built 1989 Load: 27.2 t ADT: 10,000

T-469 MILLER ROAD

Poor

Over: HILLEGAS RUN

3.3 MI SE DIVIDING RIDGE, Somerset, PA

Built 1936 Load: 27.2 t ADT: 10

EAST MAIN STREET

Poor

Over: CHARTIERS CREEK

1/4 MILE SW CARNEGIE, Allegheny, PA

Built 1934 Load: 27.2 t ADT: 1,200

Iron Street

Poor

Over: Hinckston Run

0.25mile N.E. of Broad St, Cambria, PA

Built 1930 Load: 27.2 t ADT: 100

HERRON AV

Poor

Over: NSRC CSX & BUSWAY

040 Herron Ave, Allegheny, PA

Built 1980 Load: 28.1 t ADT: 10,900

E LIBERTY(SB) BL

Poor

Over: PEDESTRIAN WALKWAY

031 E LIBERTY BLVD SB, Allegheny, PA

Built 1968 Load: 28.1 t ADT: 6,635

RAMP-TWO RD

Poor

Over: CSX (3RIV)& PACIFIC AVE

304004 RMP 2 IN MCKEESPRT, Allegheny, PA

Built 1949 Load: 28.1 t ADT: 3,300

MAPLE AV

Poor

Over: MONROEVILLE AVENUE

467001 OVER MONROE AVE, Allegheny, PA

Built 1964 Load: 28.1 t ADT: 8,563

SR2027

Poor

Over: FAGLEY RUN

FAGLEY RUN NO.2, Armstrong, PA

Built 1939 Load: 28.1 t ADT: 265

SR 0737(LR 06134)

Poor

Over: TRIB.MILL CREEK

@ WESSNER RD.T-777, Berks, PA

Built 1925 Load: 28.1 t ADT: 5,642

FLEECY DALE ROAD

Poor

Over: PAUNNACUSSING CREEK

CARVERSVILLE 18A11, Bucks, PA

Built 1884 Load: 28.1 t ADT: 135

UPR.TINICUM CH.RD.

Poor

Over: SWAMP CREEK

.4MI.N.GEIGEL HILL 11J02, Bucks, PA

Built 1914 Load: 28.1 t ADT: 239

BRIDGETON HILL RD.

Poor

Over: TRIB.DELAWARE RIVER

BRIDGETON TWP. 05B06, Bucks, PA

Built 1915 Load: 28.1 t ADT: 1,790

EDGEWOOD ROAD

Poor

Over: BROCK CREEK / 3151-E5

SOUTHWEST YARDLEY 38C01, Bucks, PA

Built 1937 Load: 28.1 t ADT: 5,599

KUMRY ROAD

Poor

Over: UNAMI CREEK / 2806-E4

.3MI.E.PA.TPK.NE. 12K06, Bucks, PA

Built 1890 Load: 28.1 t ADT: 2,796

RED LION ROAD

Poor

Over: POQUESSING CREEK

200 FT N OF PA13 3373-D10, Bucks, PA

Built 1845 Load: 28.1 t ADT: 100

SR2012

Poor

Over: THORN CREEK

WEST SAXONBURG, Butler, PA

Built 1942 Load: 28.1 t ADT: 4,448

TWP RD 841

Poor

Over: B&LE RAILROAD

COURTNEY MILL, Butler, PA

Built 1927 Load: 28.1 t ADT: 200

T-383 JONES ROAD

Poor

Over: ANDERSON RUN

0.3 MI SW OF SR 3010, Butler, PA

Built 1936 Load: 28.1 t ADT: 200

SR 903(LR 550)

Poor

Over: MUD RUN

PA903-PA534 INTERSECTION, Carbon, PA

Built 1932 Load: 28.1 t ADT: 5,877

US-1(NB)

Poor

Over: GUERNSEY ROAD

NEAR JENNERSVILLE 45G7, Chester, PA

Built 1967 Load: 28.1 t ADT: 12,373

T306 SHEPARD LN RD

Poor

Over: BRANCH OF BEAVER RUN

2100 FT NW OF T-308, Clearfield, PA

Built 1915 Load: 28.1 t ADT: 35

WALNUT & COTTAGE

Poor

Over: OVER MILL RUN

WALNUT/N.COTTAGE MEADVILL, Crawford, PA

Built 1916 Load: 28.1 t ADT: 1,500

SR 3012

Poor

Over: SPRING CREEK

DERRY STREET-PAXTANG, Dauphin, PA

Built 1938 Load: 28.1 t ADT: 13,248

CRUMS MILL RD T432

Poor

Over: PAXTON CREEK

.3NW I/S 81&83/PAXTON CR, Dauphin, PA

Built 1950 Load: 28.1 t ADT: 750

INTERSTATE 95 (NB)

Poor

Over: NAAMANS CREEK ROAD

.2MI.N.DELAWARE 42D10, Delaware, PA

Built 1967 Load: 28.1 t ADT: 51,626

VICTORY AVENUE

Poor

Over: SEPTA (P&W) ROUTE 100

NORTH OF PENNA-3 27B10, Delaware, PA

Built 1931 Load: 28.1 t ADT: 12,793

CHICHESTER AVENUE

Poor

Over: CSX RAILROAD

1MI N. I-95 42E08, Delaware, PA

Built 1941 Load: 28.1 t ADT: 15,351

MEETINGHOUSE ROAD

Poor

Over: MARCUS HOOK CREEK/3806A7

UPPER CHICHESTER 42F07, Delaware, PA

Built 1928 Load: 28.1 t ADT: 8,271

GLEN MILLS ROAD

Poor

Over: CHESTER CREEK

GRADYVILLE ROAD 32H05, Delaware, PA

Built 1933 Load: 28.1 t ADT: 3,875

SR 1005

Poor

Over: MILL POND

CITY OF ST MARYS, Elk, PA

Built 1928 Load: 28.1 t ADT: 150

T-301 (RIVER ROAD)

Poor

Over: CLINE RUN

0.5 MI E OF SR 3001 INTER, Elk, PA

Built 1940 Load: 28.1 t ADT: 300

SR 2002

Poor

Over: MILL RUN

WHARTON TOWNSHIP, Fayette, PA

Built 1940 Load: 28.1 t ADT: 103

T-372

Poor

Over: OVER TIONESTA CREEK BR.

HOWE TOWNSHIP, Forest, PA

Built 1991 Load: 28.1 t ADT: 100

PA 75; SR 0075

Poor

Over: BUCK RUN

DICKEY STATION, Franklin, PA

Built 1958 Load: 28.1 t ADT: 2,219

SR1038

Poor

Over: STRAIGHT RUN

STRAIGHT RUN NO.1, Indiana, PA

Built 1921 Load: 28.1 t ADT: 162

SR1046

Poor

Over: TRIB N BR STRAIGHT RUN

CANOE RIDGE, Indiana, PA

Built 1939 Load: 28.1 t ADT: 148

SR4006

Poor

Over: SOUTH BRANCH PLUM CREEK

DAVIS NO.2, Indiana, PA

Built 1952 Load: 28.1 t ADT: 410

CAMP ROAD

Poor

Over: CLEAR CREEK

CLEAR CREEK STATE PARK, Jefferson, PA

Built 1966 Load: 28.1 t ADT: 25

TR 307 MOOSIC ST

Poor

Over: SR 8005 RAMP B

SCRANTON OVER I-81 SR8005, Lackawanna, PA

Built 1966 Load: 28.1 t ADT: 17,668

SR 3011 KEYSER AVE

Poor

Over: ST JOHNS CREEK

OLD FORGE BO 1M N SR 3013, Lackawanna, PA

Built 1940 Load: 28.1 t ADT: 4,257

PA 72; s.main st

Poor

Over: CHICKIES CREEK

S.SIDE MANHEIM BORO, Lancaster, PA

Built 1955 Load: 28.1 t ADT: 13,915

WEAVER ROAD

Poor

Over: BACHMAN RUN

0.2 MILES N OF SR 722, Lancaster, PA

Built 1991 Load: 28.1 t ADT: 310

COCALICO CREEK RD

Poor

Over: STONY RUN

900 FT SE OF SR 272, Lancaster, PA

Built 1925 Load: 28.1 t ADT: 310

T-468 SWIFT RD

Poor

Over: CONOWINGO CREEK

1/2 MI NW OF US 222, Lancaster, PA

Built 1974 Load: 28.1 t ADT: 205

SR 2029(LR.39002)

Poor

Over: HOSENSACK CREEK

LIMEPORT PIKE, Lehigh, PA

Built 1933 Load: 28.1 t ADT: 2,916

SR 4040 (LR 39072)

Poor

Over: SWITZER CREEK

KISTLER VALLEY RD., Lehigh, PA

Built 1930 Load: 28.1 t ADT: 2,080

TOWNSHIP LINE ROAD

Poor

Over: HAASEN CREEK

@ SR 4004 INTERSECTION, Lehigh, PA

Built 1977 Load: 28.1 t ADT: 100

SR 414

Poor

Over: PINE CREEK

1 MI N OF SLATE RUN, Lycoming, PA

Built 1890 Load: 28.1 t ADT: 190

BRIDGE 2111 T-784

Poor

Over: OVER YELLOW CREEK

HOSACK ROAD JACKSON TWP., Mercer, PA

Built 1965 Load: 28.1 t ADT: 62

Showing 21,901-21,950 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.