US Bridges

Maple Drive over Ison Branch

Good

Spalding County, Georgia · SE City Limits of Griffin · Structure no. 000000025550640

Built
2010
15 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
30 ft
1 main span
Daily traffic
1,540
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Maple Drive over Ison Branch is a concrete culvert carrying Maple Drive over Ison Branch in Spalding County, Georgia. It was built in 2010, so it is 15 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,540 vehicles a day, roughly 1% of them trucks, projected to reach 2,710 by 2032. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesMaple Drive
CrossesIson Branch
LocationSE City Limits of Griffin
RouteCity Street 500
StateGeorgia
Coordinates33.21923, -84.24854
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating25.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,540 (2024)
Projected traffic2,710 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$167.8 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Maple Drive over Ison Branch built?

It was built in 2010, making it 15 years old in 2025.

What condition is Maple Drive over Ison Branch 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 Maple Drive over Ison Branch carry?

About 1,540 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Maple Drive over Ison Branch?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m).

Who owns Maple Drive over Ison Branch?

It is owned by the City or Municipal Highway Agency.