US Bridges

SR 16 over Relief

Good

Madison County, Mississippi · 1.6 MI E I 55 · Structure no. 310001604507560

Built
1970
55 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
50 ft
3 main spans
Daily traffic
2,500
2023 count
Owner
State
State Highway Agency

About this bridge

SR 16 over Relief is a concrete culvert carrying SR 16 over Relief in Madison County, Mississippi. It was built in 1970, so it is 55 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 2,500 vehicles a day, roughly 22% of them trucks, projected to reach 2,500 by 2043. The structure is 50 ft (15.2 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSR 16
CrossesRelief
Location1.6 MI E I 55
RouteState Highway 16
Coordinates32.66207, -90.03925
Functional classUrban Other Principal Arterial

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 inspectionMarch 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 rating107.1 US tons
Inventory rating64.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2023)
Projected traffic2,500 by 2043
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 16 over Relief built?

It was built in 1970, making it 55 years old in 2025.

What condition is SR 16 over Relief 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 March 2024.

How much traffic does SR 16 over Relief carry?

About 2,500 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is SR 16 over Relief?

The structure is 50 ft (15.2 m) long with a longest span of 15 ft (4.6 m).

Who owns SR 16 over Relief?

It is owned by the State Highway Agency.