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

T-442 COUNTRY LANE

Fair

Over: NS RR

0.1 MI FROM SR3011, Indiana, PA

Built 1988 Load: 22.7 t ADT: 75

SR3014

Fair

Over: BIG RUN

SPRANKLE MILLS NO.1, Jefferson, PA

Built 1956 Load: 22.7 t ADT: 208

SR 3021

Fair

Over: TUSCARORA CREEK

1 MI SE MCCOYSVILLE, Juniata, PA

Built 1962 Load: 22.7 t ADT: 139

T-531 ROCKLAND RD

Fair

Over: LOST CREEK

.2 MI NW OF INT SR 1003, Juniata, PA

Built 1940 Load: 22.7 t ADT: 300

US 222 NB; SR 0222

Fair

Over: COCALICO CREEK

1 MI. S.W. OF PA 772, Lancaster, PA

Built 1972 Load: 22.7 t ADT: 25,941

US 222 SB; SR 0222

Fair

Over: COCALICO CREEK

1 MI. S.W. PA 772, Lancaster, PA

Built 1972 Load: 22.7 t ADT: 26,428

RISSER MILL; T-350

Fair

Over: PA 283; SR 0300

1.5 MI.N.E. FLORIN, Lancaster, PA

Built 1968 Load: 22.7 t ADT: 426

US 322; 28th div.

Fair

Over: HAMMER CREEK

2 MI.N.W. OF BRICKERVILLE, Lancaster, PA

Built 1922 Load: 22.7 t ADT: 6,807

SR 2029

Fair

Over: Little Beaver Creek

1.5 MI. E. OF MARTINSVILE, Lancaster, PA

Built 1938 Load: 22.7 t ADT: 1,247

MITCHELL ROAD

Fair

Over: SR 0376

MITCHELL RD. OVER SR376, Lawrence, PA

Built 1970 Load: 22.7 t ADT: 7,036

INDIANTOWN GAP RD.

Fair

Over: I-81 ; SR 0081

1 MI.N.E. OF EXIT #85, Lebanon, PA

Built 1967 Load: 22.7 t ADT: 255

PA 343; SR 0343

Fair

Over: I-78; SR 0078

EXIT #8 I-78, Lebanon, PA

Built 1969 Load: 22.7 t ADT: 2,088

SR 3009 Gingrich r

Fair

Over: TRIB CONEWAGO CREEK

1 MI.S.E. UPPER LAWN, Lebanon, PA

Built 1961 Load: 22.7 t ADT: 311

US 22(LR 771)

Fair

Over: JORDAN CREEK

0.3 M.W.OF 7TH ST.EXIT, Lehigh, PA

Built 1952 Load: 22.7 t ADT: 76,351

PA 100(LR 672)

Fair

Over: JORDAN CREEK

AT INT.OF NARRIS RD., Lehigh, PA

Built 1932 Load: 22.7 t ADT: 11,127

SR 1031(14TH AVE.)

Fair

Over: PA 378 &TRIB TO MONOCACY

14TH AVENUE, Lehigh, PA

Built 1967 Load: 22.7 t ADT: 809

SR 3001 W MAIN ST

Fair

Over: FORGE CREEK

NANTICKE BOR .3M N SR3002, Luzerne, PA

Built 1961 Load: 22.7 t ADT: 6,081

SR 3036

Fair

Over: NORFOLK SOUTHERN RR

NESCOPECK TWP JCT TR 239, Luzerne, PA

Built 1970 Load: 22.7 t ADT: 1,155

S.R. 0180

Fair

Over: OVER MAYNARD STREET

CITY OF WILLIAMSPORT, Lycoming, PA

Built 1972 Load: 22.7 t ADT: 18,873

SR 0180

Fair

Over: E.B. OVER S.R. 2014

.5 MI S OF MUNCY, Lycoming, PA

Built 1973 Load: 22.7 t ADT: 6,794

SR 0284

Fair

Over: OVER BLACKS CR.

3 MI E OF ENGLISH CENTER, Lycoming, PA

Built 1932 Load: 22.7 t ADT: 112

T-312 OVERBROOK RD

Fair

Over: TWO MILE RUN

450 FT SOUTH OF US 6, McKean, PA

Built 1916 Load: 22.7 t ADT: 100

T-604 COMBS CRK RD

Fair

Over: PORTAGE CREEK

1000 FT WEST OF SR 155, McKean, PA

Built 1938 Load: 22.7 t ADT: 225

SR 2014 SCRUBGRASS

Fair

Over: OVER OTTER CREEK

MERCER BOROUGH, Mercer, PA

Built 1941 Load: 22.7 t ADT: 1,673

T-437 F MOUNTAIN R

Fair

Over: KISHACOQUILLAS CREEK

INTER OF T-437 & T-362, Mifflin, PA

Built 1977 Load: 22.7 t ADT: 300

SR 2010 (MANOR DR)

Fair

Over: US 209/PA 33(LR 796)

MANOR DRIVE OVER US 209, Monroe, PA

Built 1963 Load: 22.7 t ADT: 621

SR 3005(LR 45003)

Fair

Over: PRINCESS RUN

FIDDLETOWN ROAD, Monroe, PA

Built 1960 Load: 22.7 t ADT: 454

STONEY HOLLOW RD

Fair

Over: UPPER TUNKHANNOCK CREEK

900 NORTH OF PA 940, Monroe, PA

Built 1970 Load: 22.7 t ADT: 207

NEW US 202

Fair

Over: SCHUYLKILL PKWY RD NSRC

BRIDGEPORT 3367-D04, Montgomery, PA

Built 1972 Load: 22.7 t ADT: 20,913

PA 33 NB(LR 1098)

Fair

Over: NORFOLK SOUTHERN RR

HERCULES CEMENT CO., Northampton, PA

Built 1970 Load: 22.7 t ADT: 31,151

US 22/322 WB

Fair

Over: SR 1012;Old Ferry Rd.

1.5MI SE OF MILLERSTOWN, Perry, PA

Built 1966 Load: 22.7 t ADT: 8,725

PARKERS GLEN ROAD

Fair

Over: TWIN LAKES CREEK

2.5 MI N OF SR 1005, Pike, PA

Built 1956 Load: 22.7 t ADT: 50

PA 61(LR 141)

Fair

Over: READING/NORTHERN RR

2 MI.N.PORT CLINTON BORO, Schuylkill, PA

Built 1959 Load: 22.7 t ADT: 21,030

PA 309 (LR 185)

Fair

Over: Read.BlueMt&NorthRR

1 MI.N.OF HOMETOWN, Schuylkill, PA

Built 1949 Load: 22.7 t ADT: 13,132

ST. PETERS RD

Fair

Over: MAHONING CREEK

1100 FT NORTH OF T789, Schuylkill, PA

Built 1961 Load: 22.7 t ADT: 150

PA 56

Fair

Over: CLEAR SHADE CREEK

OGLETOWN, Somerset, PA

Built 1929 Load: 22.7 t ADT: 3,772

PA 403

Fair

Over: KAUFMAN RUN

TIRE HILL, Somerset, PA

Built 1929 Load: 22.7 t ADT: 4,135

SR 3006

Fair

Over: MIDDLE CREEK

4 MI.SW.OF ROCKWOOD, Somerset, PA

Built 1962 Load: 22.7 t ADT: 113

T813 TOWN HILL RD

Fair

Over: RAYSTOWN BR.JUNIATA RIV.

NEW BALTIMORE BORO., Somerset, PA

Built 1998 Load: 22.7 t ADT: 50

T-338 FALL RUN RD

Fair

Over: FALL CREEK

1.5 MI.NW.OF BARRONVALE, Somerset, PA

Built 1930 Load: 22.7 t ADT: 50

T-568 BOONE ROAD

Fair

Over: BOONE RUN

3.5 MI.W.OF SHANKSVILLE, Somerset, PA

Built 1930 Load: 22.7 t ADT: 25

SR 87

Fair

Over: LITTLE LOYALSOCK CREEK

5.5 MI E OF FORKSVILLE, Sullivan, PA

Built 1932 Load: 22.7 t ADT: 965

SR 2014

Fair

Over: EAST BR TUNKHANNOCK CRK

CLIFFORD TP 157 W SR2012, Susquehanna, PA

Built 1962 Load: 22.7 t ADT: 359

SR 2036

Fair

Over: ROCK CREEK

GIBSON TWP .2 M E SR 2038, Susquehanna, PA

Built 1980 Load: 22.7 t ADT: 17

SR2024 SPUR B

Fair

Over: TIOGA RIVER

BLOSSBURG BORO, Tioga, PA

Built 1974 Load: 22.7 t ADT: 263

SR 3020

Fair

Over: OVER LAUREL RUN

1 MI N OF LAURELTON, Union, PA

Built 1959 Load: 22.7 t ADT: 879

SR 6008 CENTER ST.

Fair

Over: OVER OIL CREEK

OIL CITY, Venango, PA

Built 1939 Load: 22.7 t ADT: 5,768

SR 3018 TWIN OAKS

Fair

Over: OVER SR 8 SB RC FRAME

VICTORY TOWNSHIP, Venango, PA

Built 1975 Load: 22.7 t ADT: 161

SR 3018 TWIN OAKS

Fair

Over: OVER SR 8 NB RC FRAME

VICTORY TOWNSHIP, Venango, PA

Built 1975 Load: 22.7 t ADT: 161

SR 0022

Fair

Over: SR 4005

HANOVER TOWNSHIP, Washington, PA

Built 1971 Load: 22.7 t ADT: 9,410

Showing 1,051-1,100 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.