US Bridges

Thompson Hill RD over Unnamed Creek

Good

Greene County, Mississippi · Sec 30 T 2N R 8W B · Structure no. SA2100000000046

Built
1973
52 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
400
2024 count
Owner
County
County Highway Agency

About this bridge

Thompson Hill RD over Unnamed Creek is a concrete culvert carrying Thompson Hill RD over Unnamed Creek in Greene County, Mississippi. It was built in 1973, so it is 52 years old, older 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 400 vehicles a day, roughly 20% of them trucks, projected to reach 600 by 2046. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesThompson Hill RD
CrossesUnnamed Creek
LocationSec 30 T 2N R 8W B
RouteCounty Highway 171
Coordinates31.10177, -88.82859
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.2 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2024)
Projected traffic600 by 2046
Trucks20%
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

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 Thompson Hill RD over Unnamed Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is Thompson Hill RD over Unnamed Creek 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 November 2024.

How much traffic does Thompson Hill RD over Unnamed Creek carry?

About 400 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is Thompson Hill RD over Unnamed Creek?

The structure is 26 ft (7.9 m) long with a longest span of 13 ft (4 m).

Who owns Thompson Hill RD over Unnamed Creek?

It is owned by the County Highway Agency.