US Bridges

Terrel Mill Road over Rottenwood Creek

Good

Cobb County, Georgia · 5 MI SW of Marietta · Structure no. 000000006751700

Built
1996
29 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
100 ft
3 main spans
Daily traffic
20,000
2024 count
Owner
County
County Highway Agency

About this bridge

Terrel Mill Road over Rottenwood Creek is a prestressed concrete stringer/multi-beam or girder carrying Terrel Mill Road over Rottenwood Creek in Cobb County, Georgia. It was built in 1996, so it is 29 years old, younger 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 20,000 vehicles a day, roughly 1% of them trucks, projected to reach 21,495 by 2032. The structure is 100 ft (30.5 m) long and 69 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTerrel Mill Road
CrossesRottenwood Creek
Location5 MI SW of Marietta
RouteCity Street 9495
StateGeorgia
Coordinates33.91205, -84.47801
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.9 US tons
Inventory rating31 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length100 ft (30.5 m)
Longest span40 ft (12.2 m)
Deck width69 ft (21 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,000 (2024)
Projected traffic21,495 by 2032
Trucks1%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Terrel Mill Road over Rottenwood Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Terrel Mill Road over Rottenwood 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 2023.

How much traffic does Terrel Mill Road over Rottenwood Creek carry?

About 20,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Terrel Mill Road over Rottenwood Creek?

The structure is 100 ft (30.5 m) long with a longest span of 40 ft (12.2 m) and a deck 69 ft wide.

Who owns Terrel Mill Road over Rottenwood Creek?

It is owned by the County Highway Agency.