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

CANEVA STREET

Fair

Over: McKEE RUN

BTW FRECH & ARCH, Indiana, PA

Built 1991 Load: 35.4 t ADT: 150

SR0322

Fair

Over: SOLDIER RUN

RATHMEL NO.5, Jefferson, PA

Built 1936 Load: 35.4 t ADT: 4,184

SR0830

Fair

Over: SR0080 WB

SFC TULLY MEM. BRG. No. 1, Jefferson, PA

Built 1970 Load: 35.4 t ADT: 1,839

SR0830

Fair

Over: SR0080 EB

SFC TULLY MEM. BRG. No. 2, Jefferson, PA

Built 1970 Load: 35.4 t ADT: 1,839

SR1019

Fair

Over: WOLF RUN

WOLF RUN NO.3, Jefferson, PA

Built 1990 Load: 35.4 t ADT: 329

SR 22-US 22

Fair

Over: SR 2005

4 MI W THOMPSONTOWN, Juniata, PA

Built 1972 Load: 35.4 t ADT: 7,630

SR 22-US 22

Fair

Over: SR 2007 & LOCUST RUN

2 MI W THOMPSONTOWN, Juniata, PA

Built 1972 Load: 35.4 t ADT: 7,630

SR 22-US 22

Fair

Over: SR 333-PA 333;DELAWARE C

THOMPSONTOWN, Juniata, PA

Built 1972 Load: 35.4 t ADT: 7,250

SR 3002

Fair

Over: SCHWEYER RUN

MIFFLINTOWN BORO, Juniata, PA

Built 1930 Load: 35.4 t ADT: 8,347

T-527 ARCH ROCK RD

Fair

Over: BIG RUN

0.1 MILE EAST INT W T398, Juniata, PA

Built 1991 Load: 35.4 t ADT: 400

SR 6006 BUSINESS 6

Fair

Over: RUSH BROOK PA 107

MAYFIELD BORO OVER TR 107, Lackawanna, PA

Built 1938 Load: 35.4 t ADT: 8,717

TR 11 BIRNEY AVE

Fair

Over: LUZERNE CO RAIL AUTHRITY

MOOSIC BORO .1 M SR 3019, Lackawanna, PA

Built 1988 Load: 35.4 t ADT: 7,679

SR 0081 I-81 NB

Fair

Over: SR 4019 EDELLA ROAD

S ABINGTON TWP OVR SR4019, Lackawanna, PA

Built 1959 Load: 35.4 t ADT: 12,870

SR 0084 I-84 EB

Fair

Over: T-334 GOLF CLUB ROAD

JEFFERSON TWP .9M W TR247, Lackawanna, PA

Built 1977 Load: 35.4 t ADT: 7,028

SR 0084 I-84 WB

Fair

Over: T-334 GOLF CLUB ROAD

JEFFERSON TWP .9M W TR247, Lackawanna, PA

Built 1977 Load: 35.4 t ADT: 8,881

SR 0380 I-380 NB

Fair

Over: SR 2010

ROARING BK TWP OV SR 2010, Lackawanna, PA

Built 1975 Load: 35.4 t ADT: 11,984

SR 0690 TR 690

Fair

Over: BEAR BROOK

MOSCOW BORO .2 M E SR2005, Lackawanna, PA

Built 1933 Load: 35.4 t ADT: 2,534

US 222 SB; SR 0222

Fair

Over: US 322; SR 0322

0.75 MI.S.E. OF EPHRATA, Lancaster, PA

Built 1970 Load: 35.4 t ADT: 21,960

324 New Danville

Fair

Over: Conestoga River

Lanc. & Pequea Twp. Line, Lancaster, PA

Built 1930 Load: 35.4 t ADT: 4,294

PA 462; E. King St

Fair

Over: Conestoga River

BRIDGEPORT, Lancaster, PA

Built 1933 Load: 35.4 t ADT: 18,747

PA 743; SR 0743

Fair

Over: AMTRACK (OLD PCRR)

ELIZABETHTOWN BOROUGH, Lancaster, PA

Built 1985 Load: 35.4 t ADT: 5,165

PA 896; SR 0896

Fair

Over: CALAMUS RUN

1 MI. SE. OF STRASBURG, Lancaster, PA

Built 1930 Load: 35.4 t ADT: 3,905

999 Blue Rock Rd

Fair

Over: W BR L CONESTOGA CREEK

2 MI.W. OF MILLERSVILLE, Lancaster, PA

Built 1964 Load: 35.4 t ADT: 5,145

Willow Rd; T-612

Fair

Over: LR 1124 INCOMPLETE RD

1.2 mi E of Eden, Lancaster, PA

Built 1975 Load: 35.4 t ADT: 3,791

SR 3018; Truce Rd

Fair

Over: Enola Low Grade Rail Tr.

1 mi SW of New Providence, Lancaster, PA

Built 1984 Load: 35.4 t ADT: 2,199

SR 4001 spooky nok

Fair

Over: PA 283; SR 0300

.5 MI.E. OF CHICKIES CK., Lancaster, PA

Built 1969 Load: 35.4 t ADT: 11,738

SR 4008 W.BRUBAKER

Fair

Over: SPEEDWELL FORGE LAKE

1 MI. W. OF TR 501, Lancaster, PA

Built 1965 Load: 35.4 t ADT: 2,419

SR 4019; Bossler r

Fair

Over: CONOY CREEK

1 MI.N. OF STACKTOWN, Lancaster, PA

Built 1934 Load: 35.4 t ADT: 584

T-660 Sun Valley

Fair

Over: PA TPK (I-76)

1MI N HOPELAND, Lancaster, PA

Built 1950 Load: 35.4 t ADT: 143

T-652

Fair

Over: PA TPK (I-76)

WEST COCALICO TWP, Lancaster, PA

Built 1949 Load: 35.4 t ADT: 200

T-770 HOLLANDER RD

Fair

Over: MILL CREEK

500 FT SOUTH OF SR 1013, Lancaster, PA

Built 1988 Load: 35.4 t ADT: 1,860

GILMORE RD

Fair

Over: HONEY CREEK

037010 LITTLE BEAVER TWP, Lawrence, PA

Built 1997 Load: 35.4 t ADT: 100

US 22; SR 0022

Fair

Over: SWATARA CREEK

1 MI.E. OF PA 72, Lebanon, PA

Built 1946 Load: 35.4 t ADT: 8,220

PA 419; SR 0419

Fair

Over: BRANCH OF MILL CREEK

W. END OF NEWMANSTOWN, Lebanon, PA

Built 1966 Load: 35.4 t ADT: 3,019

BiddleDr OLDSR4024

Fair

Over: SHUEYS RUN

1.5 MI.W. OF I-81, Lebanon, PA

Built 1937 Load: 35.4 t ADT: 846

WEBSTER SCHOOL RD

Fair

Over: TRIB TO SWATARA CK

.3S MEM LK (E.)/TR SWATR, Lebanon, PA

Built 1940 Load: 35.4 t ADT: 100

US 22(LR 771)

Fair

Over: PA 309(LR 39043)*

CRACKERSPORT INTERCHANGE, Lehigh, PA

Built 1973 Load: 35.4 t ADT: 76,351

I-78(LR 443)

Fair

Over: IRON RUN

2 MI.W.OF FOGELSVILLE, Lehigh, PA

Built 1958 Load: 35.4 t ADT: 37,909

SR 2029(LR 39002)

Fair

Over: SAUCON CREEK

LIMEPORT PIKE, Lehigh, PA

Built 1927 Load: 35.4 t ADT: 6,417

NARRIS ROAD

Fair

Over: SWITZER CREEK

WEST OF PA 100, Lehigh, PA

Built 1980 Load: 35.4 t ADT: 100

SR 1002 LR443

Fair

Over: PA TPK (I-476)

LEHIGH VALLEY INTERCHANGE, Lehigh, PA

Built 1955 Load: 35.4 t ADT: 18,254

PA TPK (I-476)

Fair

Over: T-707; GLENCREST ROAD

NORTH OF NEFFS BOROUGH, Lehigh, PA

Built 1955 Load: 35.4 t ADT: 30,563

SR 0011 TR 11

Fair

Over: TOBY CREEK

EDWRDSVLE B 1.1M E SR1004, Luzerne, PA

Built 1955 Load: 35.4 t ADT: 17,812

PA 11

Fair

Over: NFSRR RBMNRR MILL CK

DUPONT BORO JCT SR 2065, Luzerne, PA

Built 1929 Load: 35.4 t ADT: 5,627

SR 2067 CAREY AVE

Fair

Over: ABANDONED E & L RAILROAD

PLYMOUTH BO 250 E TR 11, Luzerne, PA

Built 1936 Load: 35.4 t ADT: 511

T-575 OLD STATE RD

Fair

Over: HUNTINGTON CREEK

0.7 MI WEST OF SR 118, Luzerne, PA

Built 2001 Load: 35.4 t ADT: 124

US 15 NB

Fair

Over: OVER PA 14

VILLAGE OF TROUT RUN, Lycoming, PA

Built 1970 Load: 35.4 t ADT: 6,017

SR 15 SOUTH BOUND

Fair

Over: OVER S.R. 0284

1 MI S OF BUTTONWOOD, Lycoming, PA

Built 1974 Load: 35.4 t ADT: 5,582

I-180 EB

Fair

Over: OVER SR 2075

BOROUGH OF MONTOURSVILLE, Lycoming, PA

Built 1976 Load: 35.4 t ADT: 11,505

I - 180 WBL

Fair

Over: OVER SR 0087

BOROUGH OF MONTOURSVILLE, Lycoming, PA

Built 1976 Load: 35.4 t ADT: 11,611

Showing 6,201-6,250 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.