US Bridges

SR 28 over Bog Branch

Good

Smith County, Mississippi · 1.0 MI E SR 35 · Structure no. 310002806510790

Built
1973
52 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
160 ft
4 main spans
Daily traffic
5,100
2023 count
Owner
State
State Highway Agency

About this bridge

SR 28 over Bog Branch is a prestressed concrete stringer/multi-beam or girder carrying SR 28 over Bog Branch in Smith County, Mississippi. It was built in 1973, so it is 52 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,100 vehicles a day, roughly 14% of them trucks, projected to reach 5,200 by 2043. The structure is 160 ft (48.8 m) long and 42 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

CarriesSR 28
CrossesBog Branch
Location1.0 MI E SR 35
RouteState Highway 28
Coordinates31.86281, -89.53763
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable 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 rating67.8 US tons
Inventory rating40.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span40 ft (12.2 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,100 (2023)
Projected traffic5,200 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemNo

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 28 over Bog Branch built?

It was built in 1973, making it 52 years old in 2025.

What condition is SR 28 over Bog Branch 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 August 2023.

How much traffic does SR 28 over Bog Branch carry?

About 5,100 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 28 over Bog Branch?

The structure is 160 ft (48.8 m) long with a longest span of 40 ft (12.2 m) and a deck 42 ft wide.

Who owns SR 28 over Bog Branch?

It is owned by the State Highway Agency.