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 3016;Forster St

Fair

Over: US-11/15;Susquehanna Riv

City of Harrisburg, Dauphin, PA

Built 1951 Load: 38.1 t ADT: 23,153

SR 3032 AIRPORT CN

Fair

Over: TWP RD 333

1.5 MI. N.E. OF HIGHSPIRE, Dauphin, PA

Built 1976 Load: 38.1 t ADT: 15,155

HENNINGER RD T-624

Fair

Over: WICONISCO CREEK

HENNINGER/2.2 NE E-VILLE, Dauphin, PA

Built 1990 Load: 38.1 t ADT: 100

RADEL ROAD T-452

Fair

Over: POWELL CREEK

.9ESE ENTERLINE/POWELL CR, Dauphin, PA

Built 1980 Load: 38.1 t ADT: 50

MARKET ST. T-551

Fair

Over: WICONISCO CREEK

READING DEPOT/.2N LYKENS, Dauphin, PA

Built 1982 Load: 38.1 t ADT: 100

SYCAMORE STREET

Fair

Over: AMTRAK & NSRC

CITY OF HARRISBRG/AMTRAK, Dauphin, PA

Built 1977 Load: 38.1 t ADT: 4,000

ORANGE STREET

Fair

Over: MEDIA BY-PASS

.5MI.N.OF MEDIA 34B03, Delaware, PA

Built 1959 Load: 38.1 t ADT: 3,354

CHESTER PIKE

Fair

Over: RIDLEY CREEK

SOUTH OF ROUTE 95 43J02, Delaware, PA

Built 1987 Load: 38.1 t ADT: 11,992

INTERSTATE 95(SB)

Fair

Over: US 322 EB & RAMP A

US 322 INTERCHANGE 42K06, Delaware, PA

Built 1967 Load: 38.1 t ADT: 105,755

INTERSTATE 95(NB)

Fair

Over: CRUM CREEK

JUNCTION W/I-476 43K01, Delaware, PA

Built 1975 Load: 38.1 t ADT: 43,587

SPROUL ROAD

Fair

Over: MID-COUNTY EXPRESSWAY

CARDINAL OHARA HS 25J13, Delaware, PA

Built 1989 Load: 38.1 t ADT: 20,031

CONCHESTER HIGHWAY

Fair

Over: CHICHESTER ROAD/ 3805-H4

UPPER CHICHESTER 42D05, Delaware, PA

Built 1949 Load: 38.1 t ADT: 18,611

PENNELL ROAD

Fair

Over: CHESTER CREEK

2MI.S.BALTIMORE PK.33F10, Delaware, PA

Built 1986 Load: 38.1 t ADT: 10,526

MACDADE BOULEVARD

Fair

Over: RIDLEY CREEK

.5MI.EAST PA-320 43H01, Delaware, PA

Built 1934 Load: 38.1 t ADT: 17,980

MACDADE BOULEVARD

Fair

Over: CRUM CREEK

JUST EAST I-476 34J13, Delaware, PA

Built 1987 Load: 38.1 t ADT: 22,928

MARSHALL ROAD

Fair

Over: NAYLORS RUN-ENCLOSED BOX

UPPER DARBY 27B12, Delaware, PA

Built 1966 Load: 38.1 t ADT: 26,260

STEWART AVENUE

Fair

Over: INTERSTATE 95

.2MI.S.SELLERS AVE.44C01, Delaware, PA

Built 1975 Load: 38.1 t ADT: 13,739

DELCHESTER ROAD

Fair

Over: RIDLEY CREEK

DELCHESTER RD 24A09, Delaware, PA

Built 1926 Load: 38.1 t ADT: 3,326

LOWRYS LANE

Fair

Over: SEPTA HIGH SPEED LINE

LOWRYS LANE 3477G6, Delaware, PA

Built 1940 Load: 38.1 t ADT: 250

4TH STREET

Fair

Over: AMTRAK

.3 Mi S of Main St 3698K4, Delaware, PA

Built 1984 Load: 38.1 t ADT: 2,350

T-307 (SPRING CR)

Fair

Over: BEAR CREEK

2.8 MILE WEST OF SR 3002, Elk, PA

Built 1925 Load: 38.1 t ADT: 200

SR 79 NB

Fair

Over: OVER W 16TH CSX & NS RR

CITY OF ERIE, Erie, PA

Built 1983 Load: 38.1 t ADT: 9,007

SR 90 WB

Fair

Over: OVER T-404 FRANKLIN ROAD

FAIRVIEW TOWNSHIP, Erie, PA

Built 1959 Load: 38.1 t ADT: 10,983

SR 90 EB

Fair

Over: OVER TWENTY MILE CREEK

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 38.1 t ADT: 8,156

SR 90 WB

Fair

Over: OVER TWENTY MILE CREEK

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 38.1 t ADT: 8,704

SR 1017 GULF ROAD

Fair

Over: OVER AVERILL RUN

NORTH EAST TOWNSHIP, Erie, PA

Built 1940 Load: 38.1 t ADT: 528

SR 3014 FRNKLN.CTR

Fair

Over: OVER LITTLE ELK CREEK

GIRARD TOWNSHIP, Erie, PA

Built 1963 Load: 38.1 t ADT: 452

SR 3031 PEACH ST

Fair

Over: OVER HALLS RUN

PLATEA BOROUGH, Erie, PA

Built 1986 Load: 38.1 t ADT: 276

SR 4030 NORCROSS R

Fair

Over: OVER CSX R.R.

HARBOR CREEK TOWNSHIP, Erie, PA

Built 1961 Load: 38.1 t ADT: 4,950

SR 0051

Fair

Over: JENNINGS RUN

MENALLEN TOWNSHIP, Fayette, PA

Built 1957 Load: 38.1 t ADT: 11,611

SR 0819

Fair

Over: YOUGHIOGHENY RIV/BIKE TR

DUNBAR TOWNSHIP, Fayette, PA

Built 1969 Load: 38.1 t ADT: 2,657

SR 4038

Fair

Over: WASHINGTON RUN

PERRYOPOLIS BOROUGH, Fayette, PA

Built 1960 Load: 38.1 t ADT: 997

SOLOMON FULTON RD

Fair

Over: POPLAR RUN

AT SR 1009 INTERSECTION, Fayette, PA

Built 1980 Load: 38.1 t ADT: 25

MIDDLE RIDGE ROAD

Fair

Over: CUCUMBER RUN

WEST OF SR2019/381 INTER, Fayette, PA

Built 1965 Load: 38.1 t ADT: 410

US 30; Linc.Hwy.

Fair

Over: TRIB CONOCOCHEAGUE CR.

WEST FAYETTEVILLE, Franklin, PA

Built 1949 Load: 38.1 t ADT: 14,284

T-491; KRINER RD

Fair

Over: I-81; SR 0081

2 ML. S.OF CHAMBERSBURG, Franklin, PA

Built 1963 Load: 38.1 t ADT: 6,016

PA 433;Rowe Run Rd

Fair

Over: Rowe Run

1 Mi. South of Orrstown, Franklin, PA

Built 1960 Load: 38.1 t ADT: 1,008

PA 914; Swamp Fox

Fair

Over: I-81; SR 0081

MARION, Franklin, PA

Built 1963 Load: 38.1 t ADT: 2,262

PA TPK (I-76)

Fair

Over: PA TPK RAMP

WILLOW HILL INTER., Franklin, PA

Built 1939 Load: 38.1 t ADT: 21,433

PA TPK (I-76)

Fair

Over: TROUT RUN

BETWEEN BLUE & KIT TUNLS, Franklin, PA

Built 1939 Load: 38.1 t ADT: 21,433

SANDY MOUNTAIN RD

Fair

Over: CONODOGUINET TRIBUTARY

1.5 MI. NW OF SR 997, Franklin, PA

Built 1993 Load: 38.1 t ADT: 200

RACE TRACK RD

Fair

Over: BACK CREEK TRIB

1.2 MI EAST OF SR 3012, Franklin, PA

Built 1964 Load: 38.1 t ADT: 1,000

LYONS ROAD

Fair

Over: E.BR.LITTLE ANTIETAM CR

2.3S WBORO/E BR L ANTIE, Franklin, PA

Built 1981 Load: 38.1 t ADT: 300

T335 LAYTON ROAD

Fair

Over: I-70

3.2 MILE WEST OF PA 731, Fulton, PA

Built 1962 Load: 38.1 t ADT: 54

PA 655

Fair

Over: LITTLE TONOLOWAY CREEK

2 MI.E.OF WARFORDSBURG, Fulton, PA

Built 1946 Load: 38.1 t ADT: 492

SR 0079

Fair

Over: SR 0021

FRANKLIN TOWNSHIP, Greene, PA

Built 1972 Load: 38.1 t ADT: 11,156

SR 0079

Fair

Over: TOWNSHIP ROAD 552

WASHINGTON TOWNSHIP, Greene, PA

Built 1966 Load: 38.1 t ADT: 9,943

SR 2020

Fair

Over: SMITH CREEK

FRANKLIN TOWNSHIP, Greene, PA

Built 1961 Load: 38.1 t ADT: 112

PA 350

Fair

Over: WARRIORS MARK RUN

.6 M N SR4013 NR 7STARS, Huntingdon, PA

Built 1933 Load: 38.1 t ADT: 909

SR0322

Fair

Over: SOLDIER RUN

RATHMEL NO.4, Jefferson, PA

Built 1936 Load: 38.1 t ADT: 4,184

Showing 7,151-7,200 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.