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 120-PA 120

Fair

Over: ACCESS ROAD/NORFOLK & S

RENOVO BORO, Clinton, PA

Built 1985 Load: 24.5 t ADT: 2,955

SR 1002

Fair

Over: SUSQUEHANNA RIVER

2 MILE EAST LOCK HAVEN, Clinton, PA

Built 1971 Load: 24.5 t ADT: 776

SR 1018 CENTRVILLE

Fair

Over: OVER MUDDY CREEK

STEUBEN TOWNSHIP, Crawford, PA

Built 1950 Load: 24.5 t ADT: 224

T-768 SUGAR LK.RD.

Fair

Over: OVER LAKE CREEK

.25 MI.SE.SUGAR LAKE-T768, Crawford, PA

Built 1976 Load: 24.5 t ADT: 250

US 11 NB; SR 0011

Fair

Over: I 81; SR 0081 COLL/DIST

.5 MI.N. L.R. 21051, Cumberland, PA

Built 1972 Load: 24.5 t ADT: 9,203

I-81 SB; SR 0081

Fair

Over: BURNT HOUSE RD.; T-451

4 MI.S. OF CARLISLE, Cumberland, PA

Built 1963 Load: 24.5 t ADT: 20,276

I-81 SB; SR 0081

Fair

Over: SR 1011

.2 MI.W. OF L.R. 1067, Cumberland, PA

Built 1973 Load: 24.5 t ADT: 33,721

SR 2014

Fair

Over: NORFOLK SO.

S.17TH St., Cumberland, PA

Built 1966 Load: 24.5 t ADT: 4,000

STANTON BR. T-448

Fair

Over: CONODOGUINET CREEK

5NE NWVLLE/CONDOGUINET, Cumberland, PA

Built 1962 Load: 24.5 t ADT: 292

US 22/322 EB

Fair

Over: T-509

ROCKVILLE, Dauphin, PA

Built 1977 Load: 24.5 t ADT: 16,211

US 22/322 WB

Fair

Over: T-509

ROCKVILLE, Dauphin, PA

Built 1977 Load: 24.5 t ADT: 20,777

PA 443; SR 0443

Fair

Over: FISHING CREEK

2 MI. S.E. DAUPHIN, Dauphin, PA

Built 1968 Load: 24.5 t ADT: 1,556

SR 2003

Fair

Over: PA 283; SR 0300

2 MI.N. OF MIDDLETOWN, Dauphin, PA

Built 1971 Load: 24.5 t ADT: 16,123

RAMP A-A;SR 8001

Fair

Over: SUSQUEHANNA RIVER

N.END WADE BRIDGE, Dauphin, PA

Built 1972 Load: 24.5 t ADT: 3,730

NEW MIDDLETOWN RD

Fair

Over: SEPTA

2MI.EAST TRAINER 33J08, Delaware, PA

Built 1949 Load: 24.5 t ADT: 23,431

BRYN MAWR AVENUE

Fair

Over: SEPTA (P&W)

W.HAVERFORD ROAD 15C13, Delaware, PA

Built 1906 Load: 24.5 t ADT: 11,929

REED ROAD

Fair

Over: WHETSTONE RUN

1 Mi E SR320 ADC 21-A1, Delaware, PA

Built 1962 Load: 24.5 t ADT: 12,119

SR 18 RICE AVE

Fair

Over: OVER NORFOLK & WESTERN

GIRARD BOROUGH, Erie, PA

Built 1938 Load: 24.5 t ADT: 3,299

T-665 EVANS ROAD

Fair

Over: MILL CREEK

AT W. GORE RD INTERSECT, Erie, PA

Built 1968 Load: 24.5 t ADT: 29

RAMP B FROM SR 79

Fair

Over: OVER SR 20 RAMP C SR 79

CITY OF ERIE, Erie, PA

Built 1972 Load: 24.5 t ADT: 2,954

SR 666 D ZEIS HWY

Fair

Over: OVER EAST HICKORY CREEK

HICKORY TOWNSHIP, Forest, PA

Built 1942 Load: 24.5 t ADT: 282

SR 666 D.ZEIS HWY

Fair

Over: OVER BUSH CREEK

HOWE TOWNSHIP, Forest, PA

Built 1963 Load: 24.5 t ADT: 139

PA 233;rock mtn rd

Fair

Over: ROCKY MT CR

2 MI S CALEDONIA, Franklin, PA

Built 1950 Load: 24.5 t ADT: 1,349

PA 641; Forge Hill

Fair

Over: TROUT RUN

1.5 MI.W. OF ROXBURY, Franklin, PA

Built 1980 Load: 24.5 t ADT: 3,630

BRINDLE RD

Fair

Over: CONOCOCHEAGUE CREEK

0.3 MI WEST OF SR 1003, Franklin, PA

Built 1973 Load: 24.5 t ADT: 350

BAER ROAD

Fair

Over: RED RUN

1.8SE WAYNESBORO/RED RUN, Franklin, PA

Built 1935 Load: 24.5 t ADT: 50

PA 26

Fair

Over: CROOKED RUN

207 FEET SOUTH OF TR 484, Fulton, PA

Built 1925 Load: 24.5 t ADT: 351

SR 4011

Fair

Over: WOODEN BRIDGE CREEK

3.5 MI.N.OF HUSTONTOWN, Fulton, PA

Built 1964 Load: 24.5 t ADT: 271

SR 2001

Fair

Over: RUDOLPH RUN

WAYNE TOWNSHIP, Greene, PA

Built 1964 Load: 24.5 t ADT: 13

SR 2029

Fair

Over: WHITELEY CREEK

MONONGAHELA TOWNSHIP, Greene, PA

Built 1966 Load: 24.5 t ADT: 363

SR 3007

Fair

Over: JOB CREEK

JACKSON TOWNSHIP, Greene, PA

Built 1938 Load: 24.5 t ADT: 59

SR 3012

Fair

Over: SOUTH FORK WHEELING CK.

ALEPPO TOWNSHIP, Greene, PA

Built 1953 Load: 24.5 t ADT: 244

McCOY ROAD

Fair

Over: WHITELEY CREEK

EAST OF KIRBY, Greene, PA

Built 1955 Load: 24.5 t ADT: 15

T313 Walnut Grove

Fair

Over: SIDELING HILL CREEK

2 MI.W.OF MADDENSVILLE, Huntingdon, PA

Built 1992 Load: 24.5 t ADT: 60

SR0403

Fair

Over: DIXON RUN

REMBRANT NO.1, Indiana, PA

Built 1962 Load: 24.5 t ADT: 1,849

SR0422 EB

Fair

Over: T-604 METZ RD

METZ EB, Indiana, PA

Built 1969 Load: 24.5 t ADT: 4,058

SR2012

Fair

Over: STUMP CREEK

STUMP CREEK NO.3, Jefferson, PA

Built 1938 Load: 24.5 t ADT: 221

SR3011

Fair

Over: PERRYVILLE RUN

HAMILTON NO.4, Jefferson, PA

Built 1942 Load: 24.5 t ADT: 359

SR4005

Fair

Over: SR0080 WB

RICHARDS STREET WB, Jefferson, PA

Built 1962 Load: 24.5 t ADT: 252

SR 35-PA 35

Fair

Over: TRIB COCOLAMUS CREEK

2 MI NE COCOLAMUS, Juniata, PA

Built 1929 Load: 24.5 t ADT: 3,817

SR 0081 I-81 SB

Fair

Over: SR 8001 RAMP

MOOSIC BORO OVER RAMP, Lackawanna, PA

Built 1966 Load: 24.5 t ADT: 26,216

SR 0502 TR 502

Fair

Over: SR 0380 I-380 NB & SB

COVINGTON TWP OVER I-380, Lackawanna, PA

Built 1969 Load: 24.5 t ADT: 2,862

SR 4003

Fair

Over: S BR TUNK CREEK

SCOTT TWP 400 S TR 438, Lackawanna, PA

Built 1959 Load: 24.5 t ADT: 317

US 30 EB; SR 0030

Fair

Over: SR 4001 IRONVILLE PIKE

1 MI.E. OF PA 441, Lancaster, PA

Built 1970 Load: 24.5 t ADT: 24,410

US 30 WB; SR 0030

Fair

Over: SR 4001; IRONVILLE PK

1 MI.E. OF PA 441, Lancaster, PA

Built 1970 Load: 24.5 t ADT: 24,151

SR 4041 Ridge Rd.

Fair

Over: PA 283; SR 0300

1 MI.N.E. ELIZABETHTOWN, Lancaster, PA

Built 1969 Load: 24.5 t ADT: 2,835

PA 283 WB; SR 0300

Fair

Over: PA 230; SR 0230

PA 283 OVER PA 230, Lancaster, PA

Built 1968 Load: 24.5 t ADT: 25,164

PA 772; SR 0772

Fair

Over: MUDDY RUN

1 MI.N.W. INTERCOURSE, Lancaster, PA

Built 1977 Load: 24.5 t ADT: 3,083

SR 3028

Fair

Over: MILL CREEK

1 MI.S.E. OF LANCASTER, Lancaster, PA

Built 1976 Load: 24.5 t ADT: 12,763

T-341 MT EDEN RD

Fair

Over: COOPERS RUN

1.5 MI EAST OF SR 472, Lancaster, PA

Built 1995 Load: 24.5 t ADT: 50

Showing 1,351-1,400 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.