US Bridges

Thornton Road over Trib to Hobson Bayou

Good

Tallahatchie County, Mississippi · Sec 1 T25N R 2W · Structure no. SA680000000A081

Built
2014
11 years old
Condition
Good
inspected June 2023
Type
Channel Beam
Concrete
Length
78 ft
3 main spans
Daily traffic
60
2015 count
Owner
County
County Highway Agency

About this bridge

Thornton Road over Trib to Hobson Bayou is a concrete channel beam carrying Thornton Road over Trib to Hobson Bayou in Tallahatchie County, Mississippi. It was built in 2014, so it is 11 years old, younger than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 60 vehicles a day, roughly 10% of them trucks, projected to reach 90 by 2035. The structure is 78 ft (23.8 m) long and 31 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesThornton Road
CrossesTrib to Hobson Bayou
LocationSec 1 T25N R 2W
RouteCounty Highway 42
Coordinates34.07333, -90.35278
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating37.8 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length78 ft (23.8 m)
Longest span40 ft (12.2 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2015)
Projected traffic90 by 2035
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Thornton Road over Trib to Hobson Bayou built?

It was built in 2014, making it 11 years old in 2025.

What condition is Thornton Road over Trib to Hobson Bayou in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does Thornton Road over Trib to Hobson Bayou carry?

About 60 vehicles per day (2015 count), of which roughly 10% are trucks.

How long is Thornton Road over Trib to Hobson Bayou?

The structure is 78 ft (23.8 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.

Who owns Thornton Road over Trib to Hobson Bayou?

It is owned by the County Highway Agency.