US Bridges

Community RD over Flat Branch

Fair

Harrison County, Mississippi · Sec 16 T 7S R11W B · Structure no. SA2400000000105

Built
2002
23 years old
Condition
Fair
inspected December 2024
Type
Channel Beam
Concrete
Length
187 ft
6 main spans
Daily traffic
10,000
2011 count
Owner
City
City or Municipal Highway Agency

About this bridge

Community RD over Flat Branch is a concrete channel beam carrying Community RD over Flat Branch in Harrison County, Mississippi. It was built in 2002, so it is 23 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 10,000 vehicles a day, roughly 8% of them trucks, projected to reach 15,000 by 2042. The structure is 187 ft (57 m) long and 69 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCommunity RD
CrossesFlat Branch
LocationSec 16 T 7S R11W B
RouteCounty Highway 4078
Coordinates30.44222, -89.09528
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
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 rating69.6 US tons
Inventory rating41.8 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length187 ft (57 m)
Longest span31 ft (9.5 m)
Deck width69 ft (21 m)
Roadway width65 ft (19.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2011)
Projected traffic15,000 by 2042
Trucks8%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Community RD over Flat Branch built?

It was built in 2002, making it 23 years old in 2025.

What condition is Community RD over Flat Branch 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 December 2024.

How much traffic does Community RD over Flat Branch carry?

About 10,000 vehicles per day (2011 count), of which roughly 8% are trucks.

How long is Community RD over Flat Branch?

The structure is 187 ft (57 m) long with a longest span of 31 ft (9.5 m) and a deck 69 ft wide.

Who owns Community RD over Flat Branch?

It is owned by the City or Municipal Highway Agency.