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 3020 LK QUIN RD

Good

Over: OUTLET QUINSIGAMUND LAKE

S CANAAN .3 M W SR 3018, Wayne, PA

Built 2008 Load: 39.0 t ADT: 439

HEMLOCK ROAD

Good

Over: WEST COWLEY RUN

Sizerville State Park, Cameron, PA

Built 2002 Load: 39.0 t ADT: 50

SR 62

Good

Over: SR 6 GAR HIGHWAY

BROKENSTRAW TOWNSHIP, Warren, PA

Built 2008 Load: 39.0 t ADT: 2,834

Douglas Run Rd

Good

Over: Gillespie Run

Elizabeth, Allegheny, PA

Built 2008 Load: 39.0 t ADT: 1,625

RED HILL ROAD

Good

Over: BRANCH OF TINICUM CREEK

.1MI.N.BRICK CHUR.2698K7, Bucks, PA

Built 2008 Load: 39.0 t ADT: 95

SR1045 Old Mill Rd

Good

Over: Cocalico Creek

Ephrata Boro, Lancaster, PA

Built 2009 Load: 39.0 t ADT: 2,089

VanGorders Mill RD

Good

Over: Slippery Rock Creek

wayne twp, Lawrence, PA

Built 2009 Load: 39.0 t ADT: 113

SR 414

Good

Over: ZIMMERMAN CREEK

4 MI WEST OF LIBERTY, Tioga, PA

Built 2009 Load: 39.0 t ADT: 2,223

SR0214

Good

Over: Trib Codorus Ck/ WaterSt

JOCOBUS, York, PA

Built 2010 Load: 39.0 t ADT: 4,569

Eberts Lane 1039

Good

Over: I83

Springettsbury, York, PA

Built 2010 Load: 39.0 t ADT: 1,059

SPRING MOUNT ROAD

Good

Over: PERKIOMEN CREEK

SPRING MOUNT 3029H7, Montgomery, PA

Built 2010 Load: 39.0 t ADT: 4,839

FAIRVIEW ROAD

Good

Over: BEAVER RUN

.1 MI. W. RTE 100 12K2, Chester, PA

Built 2010 Load: 39.0 t ADT: 819

SR 428 Dempseytown

Good

Over: OVER PRATHER RUN

OAKLAND TWP, Venango, PA

Built 2010 Load: 39.0 t ADT: 585

PA 56

Good

Over: BAREFOOT RUN

1.0 MILE EAST OF TR 96, Bedford, PA

Built 2010 Load: 39.0 t ADT: 6,070

BRENNEMAN ROAD

Good

Over: LITTLE BEAVER CREEK

1/2 MI NORTH OF SR 222, Lancaster, PA

Built 2010 Load: 39.0 t ADT: 820

T-737 Alfarata Rd

Good

Over: JACKS CREEK

900 N OF SR 2004, Mifflin, PA

Built 1981 Load: 39.0 t ADT: 390

GLASS RUN ROAD

Good

Over: GLASS RUN

NEAR GLENWOOD INTERCHANGE, Allegheny, PA

Built 2015 Load: 39.0 t ADT: 6,305

WEMBLEY DRIVE

Good

Over: BRANCH OF TROUT CREEK

N OF SWEDESFORD RD 3368C8, Chester, PA

Built 1990 Load: 39.0 t ADT: 110

Springhouse Road

Good

Over: Pickering Creek

NW of Kimberton Rd 3363A5, Chester, PA

Built 1994 Load: 39.0 t ADT: 400

SILVERBROOK DRIVE

Good

Over: GOSHENHOPPEN CREEK

350 FT E MEMORIAL DR, Montgomery, PA

Built 1972 Load: 39.0 t ADT: 99

U.S. ROUTE 209

Good

Over: DINGMANS CREEK

0.1 MILES SOUTH OF ROUTE, Pike, PA

Built 1999 Load: 39.0 t ADT: 5,017

SR 837 SB

Good

Over: RPS. C&D RP.CARSON LOCAL

Homestead Interchange, Allegheny, PA

Built 1966 Load: 39.2 t ADT: 8,914

T-383 Barkley Road

Good

Over: LITTLE WILLS CREEK

1.5 MI.SE.OF WEST END, Bedford, PA

Built 1937 Load: 39.2 t ADT: 88

KAOLIN ROAD

Good

Over: W. BRANCH RED CLAY CREEK

BET RTE. 82 & 41 47F11, Chester, PA

Built 1960 Load: 39.2 t ADT: 7,878

PA 283; SR 0300

Good

Over: I-283; SR 0283

1 MI N HIGHSPIRE, Dauphin, PA

Built 1969 Load: 39.2 t ADT: 54,058

SR 3006

Good

Over: OVER MOSQUITO CREEK

BORO OF DUBOISTOWN, Lycoming, PA

Built 1940 Load: 39.2 t ADT: 2,129

KENNEDY STREET

Good

Over: W BR TUNUNGWANT CREEK

100 FT NORTH OF MILLER ST, McKean, PA

Built 1955 Load: 39.2 t ADT: 800

PA 33(LR 796)

Good

Over: PA 512(LR 752)

PA512 INTERCHANGE, Northampton, PA

Built 1959 Load: 39.2 t ADT: 40,493

OAK GROVE ROAD

Good

Over: MILL CREEK

N.OF SR 443 NR.LEB.CO.LN., Schuylkill, PA

Built 1989 Load: 39.2 t ADT: 500

GALATI ROAD -T608

Good

Over: MILLERS RUN

300 NORTH OF SR 4039, Washington, PA

Built 1890 Load: 39.2 t ADT: 40

SR 3009

Good

Over: YORK RUN

NICHOLSON TWP., Fayette, PA

Built 2004 Load: 39.2 t ADT: 266

SR 2041

Good

Over: OTTER CREEK

2MI N. GORAM, York, PA

Built 2005 Load: 39.2 t ADT: 133

SR 90 EB

Good

Over: OVER T384 COLESPRINGS RR

GIRARD TOWNSHIP, Erie, PA

Built 2005 Load: 39.2 t ADT: 10,226

US 222

Good

Over: LITTLE MUDDY CREEK

US 222 OVER L.MUDDY CR., Berks, PA

Built 2004 Load: 39.2 t ADT: 40,135

SR 90 WB

Good

Over: OVER T384 COLESPRINGS RR

GIRARD TOWNSHIP, Erie, PA

Built 2006 Load: 39.2 t ADT: 10,983

SR 3009

Good

Over: Georges Creek

0.61 mi S of US119, Fayette, PA

Built 2009 Load: 39.2 t ADT: 465

BRISTOL-OXFORD VA

Good

Over: PA TURNPIKE (I-276)

NEAR BRISTOL 3263B10, Bucks, PA

Built 2011 Load: 39.2 t ADT: 15,556

SR73

Good

Over: OYSTERVILLE CREEK

PLEASANTVILLE, Berks, PA

Built 2011 Load: 39.2 t ADT: 7,918

SR 0088

Good

Over: Ten Mile Creek

3.3 mi N from SR 0188, Greene, PA

Built 2011 Load: 39.2 t ADT: 3,309

SR 287

Good

Over: SECOND FORK

2.75 MI N OF SALLADASBURG, Lycoming, PA

Built 2011 Load: 39.2 t ADT: 1,234

LR 100 - SR 0155

Good

Over: ANNIN CREEK

TURTLEPOINT, McKean, PA

Built 2011 Load: 39.2 t ADT: 2,867

SR 0021

Good

Over: South Fork Tenmile Creek

1.5 mi W from SR 0018, Greene, PA

Built 2011 Load: 39.2 t ADT: 2,424

GARFIELD ROAD

Good

Over: CHIQUES CREEK

800 FEET WEST OF SR 4001, Lancaster, PA

Built 2011 Load: 39.2 t ADT: 630

TANK FARM ROAD

Good

Over: RACCOON CREEK

SR 3013 INTERSECTION, Beaver, PA

Built 2011 Load: 39.2 t ADT: 335

T-634 DRAKES MILLS

Good

Over: TORRY RUN

1.5 MI. NW OF CAMBRIDGE S, Crawford, PA

Built 2011 Load: 39.2 t ADT: 50

DUNLAP HILL RD

Good

Over: CROWS RUN CREEK

200FT SOUTH OF SR 2004, Beaver, PA

Built 2012 Load: 39.2 t ADT: 7,867

PA 34; SR 0034

Good

Over: QUAKER RUN

1.5 MI.N. OF BIGLERVILLE, Adams, PA

Built 2012 Load: 39.2 t ADT: 4,598

SR 0308

Good

Over: SLIPPERY ROCK CREEK

2.4 MI S SR 58 Intersec., Butler, PA

Built 2012 Load: 39.2 t ADT: 1,252

SR 2002

Good

Over: MUNCY CREEK

2 MI EAST OF SONESTOWN, Sullivan, PA

Built 2012 Load: 39.2 t ADT: 70

SR 1026

Good

Over: GAYLORD CREEK

3.5 MI E INTERS 468& 8034, Bradford, PA

Built 2012 Load: 39.2 t ADT: 136

Showing 15,951-16,000 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.