US Bridges

SR 85 Sbl over Mud Creek

Good

Clayton County, Georgia · 0.35 MI S of I-75 · Structure no. 000000006301000

Built
1952
73 years old, rebuilt 1977
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
44 ft
3 main spans
Daily traffic
12,500
2024 count
Owner
State
State Highway Agency

About this bridge

SR 85 Sbl over Mud Creek is a concrete culvert carrying SR 85 Sbl over Mud Creek in Clayton County, Georgia. It was built in 1952 and reconstructed in 1977, so it is 73 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 12,500 vehicles a day, roughly 1% of them trucks, projected to reach 60,000 by 2032. The structure is 44 ft (13.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 85 Sbl
CrossesMud Creek
Location0.35 MI S of I-75
RouteState Highway 85
StateGeorgia
Coordinates33.62515, -84.40172
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating26.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length44 ft (13.4 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,500 (2024)
Projected traffic60,000 by 2032
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 85 Sbl over Mud Creek built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1977.

What condition is SR 85 Sbl over Mud Creek 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 May 2023.

How much traffic does SR 85 Sbl over Mud Creek carry?

About 12,500 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 85 Sbl over Mud Creek?

The structure is 44 ft (13.4 m) long with a longest span of 14 ft (4.3 m).

Who owns SR 85 Sbl over Mud Creek?

It is owned by the State Highway Agency.