US Bridges

Mt. Olive Road over Big Slough

Good

Mitchell County, Georgia · App 8.5 MI W of Pelham · Structure no. 000000020550700

Built
1965
60 years old, rebuilt 2002
Condition
Good
inspected August 2024
Type
Channel Beam
Prestressed Concrete
Length
150 ft
10 main spans
Daily traffic
170
2024 count
Owner
County
County Highway Agency

About this bridge

Mt. Olive Road over Big Slough is a prestressed concrete channel beam carrying Mt. Olive Road over Big Slough in Mitchell County, Georgia. It was built in 1965 and reconstructed in 2002, so it is 60 years old, older than the Georgia average of 47.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 170 vehicles a day, roughly 1% of them trucks, projected to reach 900 by 2031. The structure is 150 ft (45.7 m) long and 25 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesMt. Olive Road
CrossesBig Slough
LocationApp 8.5 MI W of Pelham
RouteCounty Highway 73
StateGeorgia
Coordinates31.13245, -84.30086
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to 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 rating45 US tons
Inventory rating26.9 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans10
Design loadH 15
Structure length150 ft (45.7 m)
Longest span15 ft (4.6 m)
Deck width25 ft (7.7 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic170 (2024)
Projected traffic900 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedNone recorded
Estimated improvement cost$879,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mt. Olive Road over Big Slough built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2002.

What condition is Mt. Olive Road over Big Slough 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 2024.

How much traffic does Mt. Olive Road over Big Slough carry?

About 170 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Mt. Olive Road over Big Slough?

The structure is 150 ft (45.7 m) long with a longest span of 15 ft (4.6 m) and a deck 25 ft wide.

Who owns Mt. Olive Road over Big Slough?

It is owned by the County Highway Agency.