US Bridges

Morton Marathon RD over Tallabogue Creek

Fair

Scott County, Mississippi · SEC_34_T 5N_R 8E B · Structure no. SA620000000A027

Built
2014
11 years old
Condition
Fair
inspected February 2023
Type
Channel Beam
Concrete
Length
157 ft
7 main spans
Daily traffic
350
2022 count
Owner
County
County Highway Agency

About this bridge

Morton Marathon RD over Tallabogue Creek is a concrete channel beam carrying Morton Marathon RD over Tallabogue Creek in Scott County, Mississippi. It was built in 2014, so it is 11 years old, younger 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.

It carries about 350 vehicles a day, roughly 15% of them trucks, projected to reach 420 by 2042. The structure is 157 ft (47.9 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesMorton Marathon RD
CrossesTallabogue Creek
LocationSEC_34_T 5N_R 8E B
RouteCounty Highway 484
Coordinates32.23422, -89.47195
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.4 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans7
Design loadH 15
Structure length157 ft (47.9 m)
Longest span31 ft (9.4 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2022)
Projected traffic420 by 2042
Trucks15%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$550,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Morton Marathon RD over Tallabogue Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is Morton Marathon RD over Tallabogue 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 February 2023.

How much traffic does Morton Marathon RD over Tallabogue Creek carry?

About 350 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Morton Marathon RD over Tallabogue Creek?

The structure is 157 ft (47.9 m) long with a longest span of 31 ft (9.4 m) and a deck 28 ft wide.

Who owns Morton Marathon RD over Tallabogue Creek?

It is owned by the County Highway Agency.