US Bridges

Thornhill ST over Mays Branch

Fair

Crawford County, Arkansas · 2.51 MI S. Jct. HWY 162 · Structure no. 000000000006561

Built
2000
25 years old
Condition
Fair
inspected June 2024
Type
Channel Beam
Concrete
Length
73 ft
3 main spans
Daily traffic
560
2018 count
Owner
County
County Highway Agency

About this bridge

Thornhill ST over Mays Branch is a concrete channel beam carrying Thornhill ST over Mays Branch in Crawford County, Arkansas. It was built in 2000, so it is 25 years old, younger than the Arkansas average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 560 vehicles a day, roughly 1% of them trucks, projected to reach 600 by 2033. The structure is 73 ft (22.1 m) long and 27 ft wide. If it were closed, the detour would be 124.3 mi (200 km).

Location

Open in Google Maps
CarriesThornhill ST
CrossesMays Branch
Location2.51 MI S. Jct. HWY 162
RouteCounty Highway 0
CountyCrawford County
StateArkansas
Coordinates35.39442, -94.23273
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length73 ft (22.1 m)
Longest span31 ft (9.4 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic560 (2018)
Projected traffic600 by 2033
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed124.3 mi (200 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Thornhill ST over Mays Branch built?

It was built in 2000, making it 25 years old in 2025.

What condition is Thornhill ST over Mays Branch 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 June 2024.

How much traffic does Thornhill ST over Mays Branch carry?

About 560 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Thornhill ST over Mays Branch?

The structure is 73 ft (22.1 m) long with a longest span of 31 ft (9.4 m) and a deck 27 ft wide.

Who owns Thornhill ST over Mays Branch?

It is owned by the County Highway Agency.