US Bridges

Marianna Road over Unnamed Creek

Fair

Marshall County, Mississippi · Sec 19 T 4S R 3W B · Structure no. SA4700000000084

Built
1967
58 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
60 ft
3 main spans
Daily traffic
540
2022 count
Owner
County
County Highway Agency

About this bridge

Marianna Road over Unnamed Creek is a concrete slab carrying Marianna Road over Unnamed Creek in Marshall County, Mississippi. It was built in 1967, so it is 58 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 540 vehicles a day, roughly 4% of them trucks, projected to reach 810 by 2042. The structure is 60 ft (18.3 m) long and 27 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesMarianna Road
CrossesUnnamed Creek
LocationSec 19 T 4S R 3W B
RouteCounty Highway 913
CountyMarshall County
StateMississippi
Coordinates34.73018, -89.56334
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating28.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length60 ft (18.3 m)
Longest span20 ft (6.1 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic540 (2022)
Projected traffic810 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$675,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Marianna Road over Unnamed Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is Marianna Road over Unnamed Creek 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 March 2024.

How much traffic does Marianna Road over Unnamed Creek carry?

About 540 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Marianna Road over Unnamed Creek?

The structure is 60 ft (18.3 m) long with a longest span of 20 ft (6.1 m) and a deck 27 ft wide.

Who owns Marianna Road over Unnamed Creek?

It is owned by the County Highway Agency.