US Bridges

Smith Co. 120 over Big Shongelo Creek

Good

Smith County, Mississippi · Sec 17 T 3N R 8E · Structure no. SA6500000000065

Built
2000
25 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
39 ft
200 main spans
Daily traffic
60
2024 count
Owner
County
County Highway Agency

About this bridge

Smith Co. 120 over Big Shongelo Creek is a concrete culvert carrying Smith Co. 120 over Big Shongelo Creek in Smith County, Mississippi. It was built in 2000, so it is 25 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 8% of them trucks, projected to reach 90 by 2044. The structure is 39 ft (12 m) long. If it were closed, the detour would be 39.8 mi (64 km).

CarriesSmith Co. 120
CrossesBig Shongelo Creek
LocationSec 17 T 3N R 8E
RouteCounty Highway 91
Coordinates32.09243, -89.49625
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.6 US tons
Inventory rating35.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans200
Design loadHS 20
Structure length39 ft (12 m)
Longest span16 ft (5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2024)
Projected traffic90 by 2044
Trucks8%
Lanes on structure20
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$550,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Smith Co. 120 over Big Shongelo Creek built?

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

What condition is Smith Co. 120 over Big Shongelo 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 August 2024.

How much traffic does Smith Co. 120 over Big Shongelo Creek carry?

About 60 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Smith Co. 120 over Big Shongelo Creek?

The structure is 39 ft (12 m) long with a longest span of 16 ft (5 m).

Who owns Smith Co. 120 over Big Shongelo Creek?

It is owned by the County Highway Agency.