US Bridges

Siloam Griffin RD over Griffin Creek

Good

Clay County, Mississippi · Sec 33 T16S R 5E B · Structure no. SA1300000000060

Built
1979
46 years old
Condition
Good
inspected January 2023
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
50
2018 count
Owner
County
County Highway Agency

About this bridge

Siloam Griffin RD over Griffin Creek is a concrete culvert carrying Siloam Griffin RD over Griffin Creek in Clay County, Mississippi. It was built in 1979, so it is 46 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 75 by 2038. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSiloam Griffin RD
CrossesGriffin Creek
LocationSec 33 T16S R 5E B
RouteCounty Highway 180
Coordinates33.63676, -88.77876
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.5 US tons
Inventory rating44 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length20 ft (6.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2018)
Projected traffic75 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Siloam Griffin RD over Griffin Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Siloam Griffin RD over Griffin 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 January 2023.

How much traffic does Siloam Griffin RD over Griffin Creek carry?

About 50 vehicles per day (2018 count).

How long is Siloam Griffin RD over Griffin Creek?

The structure is 20 ft (6.1 m) long with a longest span of 10 ft (3 m).

Who owns Siloam Griffin RD over Griffin Creek?

It is owned by the County Highway Agency.