US Bridges

Henderson Mill Rd. over Henderson Mill Creek Trb

Good

DeKalb County, Georgia · 3.3 MI SE of Chamblee · Structure no. 000000008902110

Built
1950
75 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
36 ft
3 main spans
Daily traffic
9,530
2024 count
Owner
County
County Highway Agency

About this bridge

Henderson Mill Rd. over Henderson Mill Creek Trb is a concrete culvert carrying Henderson Mill Rd. over Henderson Mill Creek Trb in DeKalb County, Georgia. It was built in 1950, so it is 75 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 9,530 vehicles a day, roughly 1% of them trucks, projected to reach 14,385 by 2031. The structure is 36 ft (11 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesHenderson Mill Rd.
CrossesHenderson Mill Creek Trb
Location3.3 MI SE of Chamblee
RouteCity Street 9276
StateGeorgia
Coordinates33.87099, -84.25056
Functional classUrban 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length36 ft (11 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,530 (2024)
Projected traffic14,385 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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$211,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Henderson Mill Rd. over Henderson Mill Creek Trb built?

It was built in 1950, making it 75 years old in 2025.

What condition is Henderson Mill Rd. over Henderson Mill Creek Trb 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 July 2024.

How much traffic does Henderson Mill Rd. over Henderson Mill Creek Trb carry?

About 9,530 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Henderson Mill Rd. over Henderson Mill Creek Trb?

The structure is 36 ft (11 m) long with a longest span of 11 ft (3.4 m).

Who owns Henderson Mill Rd. over Henderson Mill Creek Trb?

It is owned by the County Highway Agency.