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 3007

Poor

Over: WHITETHORN RUN

RICHHILL TOWNSHIP, Greene, PA

Built 1915 Load: 31.8 t ADT: 287

SR0110

Poor

Over: CROOKED CREEK

CREEKSIDE NO.1, Indiana, PA

Built 1961 Load: 31.8 t ADT: 1,086

SR0954

Poor

Over: CROOKED CREEK

FULTON RUN RD, Indiana, PA

Built 1954 Load: 31.8 t ADT: 666

SR1012

Poor

Over: TWO LICK CREEK

DIAMONDVILLE NO.1, Indiana, PA

Built 1935 Load: 31.8 t ADT: 294

SR4005

Poor

Over: MARSH RUN

MACK PARK, Indiana, PA

Built 1930 Load: 31.8 t ADT: 9,950

SR 1037 speedwell

Poor

Over: HAMMER CREEK

1.25 MI. N.E. OF ELM, Lancaster, PA

Built 1930 Load: 31.8 t ADT: 370

T-713 PINETOWN RD

Poor

Over: LITITZ RUN

1500 FT NE OF SR 1029, Lancaster, PA

Built 1930 Load: 31.8 t ADT: 775

SR 0081 I-81 NB

Poor

Over: NRFLK STHRN RR & BL CRK

W HAZLETON BOR .7 S TR 93, Luzerne, PA

Built 1967 Load: 31.8 t ADT: 17,741

I-81 SB

Poor

Over: LUZ CO RAIL AUTHORITY

ASHLEY BORO .7M N EXT 164, Luzerne, PA

Built 1966 Load: 31.8 t ADT: 26,444

SR 0239 TR 239

Poor

Over: LITTLE WAPWALLOPEN CREEK

CONYNGHAM TP .2M N SR3008, Luzerne, PA

Built 1940 Load: 31.8 t ADT: 1,150

SR 0924 TR 924

Poor

Over: NRFLK STHRN RR

HAZLE TWP 1.7 M E I-81, Luzerne, PA

Built 1967 Load: 31.8 t ADT: 13,072

SR 46-PA 46

Poor

Over: COLEGROVE BROOK

COLEGROVE, McKean, PA

Built 1927 Load: 31.8 t ADT: 500

SR 646-PA 646

Poor

Over: PENNBROOK RUN

1 MI N GILMORE, McKean, PA

Built 1930 Load: 31.8 t ADT: 979

T-613 WILLIAMSON

Poor

Over: OVER BRANCH L. SHENANGO

WILLIAMSON OTTER CREEK, Mercer, PA

Built 1934 Load: 31.8 t ADT: 31

US 209 (LR 461 W)

Poor

Over: MARSHALLS CREEK

1.3 MI.N.OF N. WATER GAP, Monroe, PA

Built 1930 Load: 31.8 t ADT: 20,446

SR 1006(T-635)

Poor

Over: PARADISE CREEK

RED ROCK RD. PARADISE, Monroe, PA

Built 1956 Load: 31.8 t ADT: 446

SKIPPACK PIKE

Poor

Over: SKIPPACK CREEK

SKIPPACK 21D2/3142J5, Montgomery, PA

Built 1935 Load: 31.8 t ADT: 16,231

VALLEY FORGE ROAD

Poor

Over: TOWAMENCIN CREEK

SUMNEY. PIKE 22D1/3143K4, Montgomery, PA

Built 1928 Load: 31.8 t ADT: 11,931

BUTLER PIKE

Poor

Over: WISSAHICKON CREEK

1.6 Mi SW PA-309 3257-D6, Montgomery, PA

Built 1926 Load: 31.8 t ADT: 13,301

MINGO ROAD

Poor

Over: MINGO CREEK

1.5 Mi NW PA-113 3252-G2, Montgomery, PA

Built 1914 Load: 31.8 t ADT: 1,778

REIHMAN ROAD

Poor

Over: MACOBY CREEK

.33MI N OF SR0029 2917-E5, Montgomery, PA

Built 1925 Load: 31.8 t ADT: 125

SR2031COUNTRY CLUB

Poor

Over: US 22 (LR 772)

T-454 OVER U.S. 22, Northampton, PA

Built 1954 Load: 31.8 t ADT: 5,367

SR 2025 (LR 166)

Poor

Over: LITTLE BUSHKILL CREEK

STOCKERTOWN CENTER ST., Northampton, PA

Built 1929 Load: 31.8 t ADT: 9,448

SR 3020(LR 48063)

Poor

Over: EAST BR.MONACACY CREEK

1.5 MI.EAST OF BATH, Northampton, PA

Built 1939 Load: 31.8 t ADT: 8,341

W WALNUT ST

Poor

Over: SHAMOKIN CREEK

SHAMOKIN CITY, Northumberland, PA

Built 1914 Load: 31.8 t ADT: 8,400

PA 17&850; SR 0017

Poor

Over: BRANCH BIXLER RUN

KISTLER, Perry, PA

Built 1935 Load: 31.8 t ADT: 698

LAUREL RUN RD

Poor

Over: LAUREL RUN

4.5 SW LANDISBURG/LAUREL, Perry, PA

Built 1923 Load: 31.8 t ADT: 75

US 219 SBL

Poor

Over: T685 MILLER ROAD

1.8 MILE SOUTH OF TR 30, Somerset, PA

Built 1969 Load: 31.8 t ADT: 6,344

SR 1017

Poor

Over: BREASTWORK RUN

2.4 MI.W.OF NEW BALTIMORE, Somerset, PA

Built 1937 Load: 31.8 t ADT: 87

T-390 BACK ROAD

Poor

Over: LITTLE GLADE RUN

3.7 MI.N.OF CONFLUENCE, Somerset, PA

Built 1922 Load: 31.8 t ADT: 25

T804 SPRUCE STREET

Poor

Over: BRANCH OF SEESE RUN

VILLAGE OF RUMMEL, Somerset, PA

Built 1957 Load: 31.8 t ADT: 250

SR 0171 TR 171

Poor

Over: DENTON CREEK

GREAT BEND TWP INT SR1025, Susquehanna, PA

Built 1946 Load: 31.8 t ADT: 2,047

T508 (Meshoppen Cr

Poor

Over: BURDICK CREEK

2 MI SE OF DIMOCK, Susquehanna, PA

Built 1973 Load: 31.8 t ADT: 50

SR 3023 Waterloo

Poor

Over: OVER MILL CREEK

UTICA BOROUGH, Venango, PA

Built 1888 Load: 31.8 t ADT: 140

SR 1013 COBHAM PK

Poor

Over: GLADE RUN

GLADE TOWNSHIP, Warren, PA

Built 1958 Load: 31.8 t ADT: 1,038

T-355 GOSSVILLE RD

Poor

Over: OVER CALDWELL CREEK W.BR

ELDRED TOWNSHIP, Warren, PA

Built 1995 Load: 31.8 t ADT: 75

GALLEY ROAD

Poor

Over: BRANCH OF CHARTIERS CRK

EAST OF CANNONSBURG, Washington, PA

Built 1920 Load: 31.8 t ADT: 9,600

SR3020 LKE QUIN RD

Poor

Over: Inlet to Lake Quinn

S CANAAN TWP 1M W SR 3018, Wayne, PA

Built 1937 Load: 31.8 t ADT: 439

BR. 32 VANAUKEN

Poor

Over: VANAUKEN CREEK

Prompton Rd Prompton Boro, Wayne, PA

Built 1944 Load: 31.8 t ADT: 210

BOWMAN HOLLOW ROAD

Poor

Over: TRIB. MEHOOPANY CREEK

INTERSECTION W/ MAIN ST., Wyoming, PA

Built 1930 Load: 31.8 t ADT: 100

I-83; SR 0083

Poor

Over: 2002/Springwood Rd

.6 MI N OF PA 74 INTER, York, PA

Built 1959 Load: 31.8 t ADT: 54,017

SR 3070

Poor

Over: TRIB W BR CODORUS CREEK

2.5 MI.S. PARKVILLE, York, PA

Built 1940 Load: 31.8 t ADT: 2,992

Calumet Street

Poor

Over: SEPTA (Norristown Br)

W. of Cresson St 3479-J9, Philadelphia, PA

Built 1925 Load: 31.8 t ADT: 1,000

Bells Mill Road

Poor

Over: Wissahickon Creek

SW of Germantown Ave16G02, Philadelphia, PA

Built 1820 Load: 31.8 t ADT: 12,200

T-570 OLD RTE 422

Poor

Over: LITTLE BUFFALO RUN

0.9 mi E of S.R. 1015, Butler, PA

Built 1938 Load: 31.8 t ADT: 50

G O Carlson Blvd.

Poor

Over: Valley Run

0.9 Mi W PA-340 3580-H1, Chester, PA

Built 2001 Load: 31.8 t ADT: 4,000

TR720 RONEY ROAD

Poor

Over: SHEHAWKEN CREEK

100 FT FROM RT 370, Wayne, PA

Built 1963 Load: 31.8 t ADT: 10

SR 4013 GREENLEE R

Poor

Over: OVER ELK CREEK

MCKEAN TOWNSHIP, Erie, PA

Built 1955 Load: 32.4 t ADT: 634

MAINT/ACCESS ROAD

Poor

Over: Conemaugh River

0.35 MI. DS FROM DAM, Indiana, PA

Built 1907 Load: 32.4 t ADT: 30

PA 34; SR 0034

Poor

Over: CONEWAGO CREEK

1 MI. S. OF BIGLERVILLE, Adams, PA

Built 1920 Load: 32.7 t ADT: 4,513

Showing 22,251-22,300 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.