US Bridges

Houk Road over Big Run

Fair

Lawrence County, Pennsylvania · 0.13 MI South of SR108 · Structure no. 000000000049144

Built
1912
113 years old
Condition
Fair
inspected August 2023
Type
Arch - Deck
Concrete
Length
21 ft
1 main span
Daily traffic
100
2015 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Houk Road over Big Run is a concrete arch - deck carrying Houk Road over Big Run in Lawrence County, Pennsylvania. It was built in 1912, so it is 113 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 100 vehicles a day, roughly 5% of them trucks, projected to reach 125 by 2035. The structure is 21 ft (6.4 m) long and 18 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesHouk Road
CrossesBig Run
Location0.13 MI South of SR108
RouteCity Street 0/0
CountyLawrence County
StatePennsylvania
Coordinates41.00839, -80.24404
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating50 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width18 ft (5.4 m)
Roadway width16 ft (5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2015)
Projected traffic125 by 2035
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Houk Road over Big Run built?

It was built in 1912, making it 113 years old in 2025.

What condition is Houk Road over Big Run in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does Houk Road over Big Run carry?

About 100 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is Houk Road over Big Run?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 18 ft wide.

Who owns Houk Road over Big Run?

It is owned by the Town or Township Highway Agency.