US Bridges

Rainbow Drive over Shoal Creek

Good

DeKalb County, Georgia · 4.5 MI SE of Decatur · Structure no. 000000008901600

Built
1925
100 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
37 ft
3 main spans
Daily traffic
5,190
2024 count
Owner
County
County Highway Agency

About this bridge

Rainbow Drive over Shoal Creek is a concrete culvert carrying Rainbow Drive over Shoal Creek in DeKalb County, Georgia. It was built in 1925, so it is 100 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 5,190 vehicles a day, roughly 3% of them trucks, projected to reach 13,110 by 2031. The structure is 37 ft (11.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesRainbow Drive
CrossesShoal Creek
Location4.5 MI SE of Decatur
RouteCounty Highway 9122
StateGeorgia
Coordinates33.70973, -84.26591
Functional classUrban Collector

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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length37 ft (11.3 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,190 (2024)
Projected traffic13,110 by 2031
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$217,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Rainbow Drive over Shoal Creek built?

It was built in 1925, making it 100 years old in 2025.

What condition is Rainbow Drive over Shoal 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 March 2024.

How much traffic does Rainbow Drive over Shoal Creek carry?

About 5,190 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Rainbow Drive over Shoal Creek?

The structure is 37 ft (11.3 m) long with a longest span of 12 ft (3.7 m).

Who owns Rainbow Drive over Shoal Creek?

It is owned by the County Highway Agency.