US Bridges

Enon Road over Upper Little River

FairPosted for load

Marion County, Mississippi · Sec 35 T 4N R17W · Structure no. SA4600000000106

Built
1986
39 years old
Condition
Fair
inspected November 2024
Type
Channel Beam
Concrete
Length
100 ft
4 main spans
Daily traffic
50
2013 count
Owner
County
County Highway Agency

About this bridge

Enon Road over Upper Little River is a concrete channel beam carrying Enon Road over Upper Little River in Marion County, Mississippi. It was built in 1986, so it is 39 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, projected to reach 75 by 2034. The structure is 100 ft (30.5 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesEnon Road
CrossesUpper Little River
LocationSec 35 T 4N R17W
RouteCounty Highway 153
Coordinates31.26397, -89.68669
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.3 US tons
Inventory rating22.3 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadH 15
Structure length100 ft (30.5 m)
Longest span31 ft (9.4 m)
Deck width25 ft (7.5 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2013)
Projected traffic75 by 2034
Trucks0%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$175,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Enon Road over Upper Little River built?

It was built in 1986, making it 39 years old in 2025.

What condition is Enon Road over Upper Little River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2024.

How much traffic does Enon Road over Upper Little River carry?

About 50 vehicles per day (2013 count).

How long is Enon Road over Upper Little River?

The structure is 100 ft (30.5 m) long with a longest span of 31 ft (9.4 m) and a deck 25 ft wide.

Who owns Enon Road over Upper Little River?

It is owned by the County Highway Agency.