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

PA TPK (I-76)

Fair

Over: SR1005 LR 15050

EAST OF CEDAR HOLLOW, Chester, PA

Built 1950 Load: 39.9 t ADT: 47,120

WEST VALLEY ROAD

Fair

Over: NORFOLK SOUTHERN RR

3.5 Mi NE PAOLI 3366-C10, Chester, PA

Built 1996 Load: 39.9 t ADT: 4,527

SR0058

Fair

Over: TURKEY RUN

ALUM ROCK NO.1, Clarion, PA

Built 1991 Load: 39.9 t ADT: 568

SR0080 WB

Fair

Over: T-310 METZ ROAD

METZ ROAD WB, Clarion, PA

Built 1966 Load: 39.9 t ADT: 10,140

SR0080 WB

Fair

Over: STRATTAN RUN

STRATTAN RUN, Clarion, PA

Built 1966 Load: 39.9 t ADT: 9,982

SR2016

Fair

Over: PINEY CREEK

EAST LIMESTONE, Clarion, PA

Built 1956 Load: 39.9 t ADT: 191

T-526 OLD TOWN RD

Fair

Over: PINEY CREEK

0.2 mi E int w/ SR 68, Clarion, PA

Built 1991 Load: 39.9 t ADT: 150

SECOND STREET

Fair

Over: BRADY ST&TRIB ALLEGHENY

0.1 mi SSE int. w/ SR 68, Clarion, PA

Built 1989 Load: 39.9 t ADT: 50

SR8006

Fair

Over: SR0080 EB&WB

PAINT BOULEVARD, Clarion, PA

Built 1965 Load: 39.9 t ADT: 2,010

ON TSR 711

Fair

Over: SR 80-I 80

2 MI E EXIT 133, Clearfield, PA

Built 1968 Load: 39.9 t ADT: 168

ON TSR 302

Fair

Over: BEAVER RUN

HOUTZDALE, Clearfield, PA

Built 1952 Load: 39.9 t ADT: 128

SR 2017

Fair

Over: COAL RUN

2 MI NW OSCEOLA MILLS, Clearfield, PA

Built 1957 Load: 39.9 t ADT: 167

SR 80-I 80

Fair

Over: SR 2002

EXIT 192 CARROLL, Clinton, PA

Built 1970 Load: 39.9 t ADT: 9,005

SR 6 ERIE STREET

Fair

Over: OVER SHENANGO RIVER TRIB

PINE TOWNSHIP, Crawford, PA

Built 1952 Load: 39.9 t ADT: 4,678

SR 79 NB

Fair

Over: OVER SR 0102

VERNON TOWNSHIP, Crawford, PA

Built 1969 Load: 39.9 t ADT: 7,350

SR 89 CHURCH RUN

Fair

Over: OVER CHURCH RUN

OIL CREEK TOWNSHIP, Crawford, PA

Built 1984 Load: 39.9 t ADT: 827

SR 198 RESERVOIR

Fair

Over: OVER CUSSEWAGO CREEK

HAYFIELD TOWNSHIP, Crawford, PA

Built 1955 Load: 39.9 t ADT: 2,568

SR 1020 TYRONVILLE

Fair

Over: OVER OIL CREEK

STEUBEN TOWNSHIP, Crawford, PA

Built 1977 Load: 39.9 t ADT: 317

SR 2030 DRAKE H.RD

Fair

Over: OVER DECKARDS RUN

WAYNE TOWNSHIP, Crawford, PA

Built 1901 Load: 39.9 t ADT: 70

SR 4001 BEAVER CNT

Fair

Over: OVER PADAN CREEK TRIB

CONNEAUT TOWNSHIP, Crawford, PA

Built 1940 Load: 39.9 t ADT: 341

US 11 NB; SR 0011

Fair

Over: CONODOGUINET CREEK

WEST FAIRVIEW, Cumberland, PA

Built 1970 Load: 39.9 t ADT: 7,306

US 11; SR 0581

Fair

Over: 2029 St Johns Church Rd

CAMP HILL, Cumberland, PA

Built 1961 Load: 39.9 t ADT: 65,351

US 22 EB; SR 0022

Fair

Over: SR 8003; RAMP C

INTER OF I81 & US22, Dauphin, PA

Built 1977 Load: 39.9 t ADT: 21,519

US 22 WB; SR 0022

Fair

Over: SR 8003; RAMP C

INTER OF I81 & US22, Dauphin, PA

Built 1977 Load: 39.9 t ADT: 18,505

I-81 SB; SR 0081

Fair

Over: T-432 CRUMS MILL RD.

1 MI. N. PROGRESS, Dauphin, PA

Built 1969 Load: 39.9 t ADT: 35,050

I-81; SR 0081

Fair

Over: BEAVER CREEK

1 MI S.E. LINGLESTOWN, Dauphin, PA

Built 1969 Load: 39.9 t ADT: 55,260

I-81; SR 0081

Fair

Over: SR 2015 MANADA GAP RD

1 MI.E. OF SHELLSVILLE, Dauphin, PA

Built 1967 Load: 39.9 t ADT: 25,383

I-83; SR 0083

Fair

Over: SR 3010 & 16TH. ST.

PAXTON STREET, Dauphin, PA

Built 1961 Load: 39.9 t ADT: 81,885

PA 147; SR 0147

Fair

Over: WICONISCO CREEK

SOUTH MILLERSBURG, Dauphin, PA

Built 1954 Load: 39.9 t ADT: 6,189

PA 283; SR 0300

Fair

Over: IRON RUN

2 MI. E. OF MIDDLETOWN, Dauphin, PA

Built 1969 Load: 39.9 t ADT: 45,339

SR 2010

Fair

Over: KELLOCK RUN

1 MI. N. HUMMELSTOWN, Dauphin, PA

Built 1923 Load: 39.9 t ADT: 1,617

SR 8004 RAMP-B EB

Fair

Over: SUSQUEHANNA RIVER

CLARKS FERRY, Dauphin, PA

Built 1986 Load: 39.9 t ADT: 2,015

ST.DAVIDS ROAD

Fair

Over: DARBY CREEK / 3476-F8

1MI.W.NEWTOWN RD. 14A13, Delaware, PA

Built 1810 Load: 39.9 t ADT: 5,429

BORTON DALE ROAD

Fair

Over: RIDLEY CREEK

.5MI S.MEDIA 34B08, Delaware, PA

Built 1998 Load: 39.9 t ADT: 2,451

I-95 RAMPS R&S SB

Fair

Over: SEPTA(TRACKS REMOVED)

BARRY BRIDGE INTER.43D05, Delaware, PA

Built 1976 Load: 39.9 t ADT: 22,367

SR 1003

Fair

Over: ELK CREEK

1 MI N ST MARYS, Elk, PA

Built 1958 Load: 39.9 t ADT: 2,068

SR 2219-US 219 TR

Fair

Over: SR 120-PA 120 ELK CREEK

1 MILE EAST OF RIDGWAY, Elk, PA

Built 1987 Load: 39.9 t ADT: 517

SR 90 WB

Fair

Over: OVER SR 89 N/SB STATION

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 39.9 t ADT: 9,175

SR 0119 NORTHBOUND

Fair

Over: SR 2040

SOUTH & NORTH UNION TWP., Fayette, PA

Built 1971 Load: 39.9 t ADT: 12,098

NEBO ROAD

Fair

Over: INDIAN CREEK

EAST OF ROUTE 381, Fayette, PA

Built 1994 Load: 39.9 t ADT: 115

SR 4004 GERMAN HIL

Fair

Over: OVER ROSS RUN

KINGSLEY TOWNSHIP, Forest, PA

Built 1915 Load: 39.9 t ADT: 161

PA 75; SR 0075

Fair

Over: WELSH RUN

1 MI S KASIESVILLE, Franklin, PA

Built 1955 Load: 39.9 t ADT: 1,750

PA-233;Rocky Mtn.

Fair

Over: Racoon Creek

Caledonia, Franklin, PA

Built 1950 Load: 39.9 t ADT: 1,349

SR 1003;Woodstock

Fair

Over: I-81; SR 0081

0.75 M S SCOTLAND, Franklin, PA

Built 1963 Load: 39.9 t ADT: 5,072

PA 731

Fair

Over: I-70

OVER I-70 AT AMARANTH, Fulton, PA

Built 1960 Load: 39.9 t ADT: 257

PA 915

Fair

Over: LITTLE BRUSH CREEK

2.0 MI.N.OF AKERSVILLE, Fulton, PA

Built 1943 Load: 39.9 t ADT: 183

T415 NARROWS ROAD

Fair

Over: LICKING CREEK

.3 MI.E.OF KNOBSVILLE, Fulton, PA

Built 1960 Load: 39.9 t ADT: 333

TOWNSHIP ROAD 341

Fair

Over: OWENS RUN

RICHHILL TOWNSHIP, Greene, PA

Built 1966 Load: 39.9 t ADT: 20

TOWNSHIP ROAD 490

Fair

Over: ROBERTS RUN

WEST OF BROCK, Greene, PA

Built 1910 Load: 39.9 t ADT: 100

T409 TUSCAR CRK RD

Fair

Over: TUSCARORA CREEK

0.5 MILE N. OF NOSSVILLE, Huntingdon, PA

Built 1921 Load: 39.9 t ADT: 66

Showing 7,701-7,750 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.