US Bridges

I-185 (sbl) over Mulberry Creek

Good

Harris County, Georgia · 7 MI SW of Hamilton · Structure no. 000000014500420

Built
1978
47 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
240 ft
3 main spans
Daily traffic
26,500
2024 count
Owner
State
State Highway Agency

About this bridge

I-185 (sbl) over Mulberry Creek is a steel stringer/multi-beam or girder carrying I-185 (sbl) over Mulberry Creek in Harris County, Georgia. It was built in 1978, so it is 47 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 26,500 vehicles a day, roughly 1% of them trucks, projected to reach 34,560 by 2032. The structure is 240 ft (73.2 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-185 (sbl)
CrossesMulberry Creek
Location7 MI SW of Hamilton
RouteInterstate 185
CountyHarris County
StateGeorgia
Coordinates32.69183, -84.99358
Functional classRural Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46 US tons
Inventory rating26.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length240 ft (73.2 m)
Longest span90 ft (27.4 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,500 (2024)
Projected traffic34,560 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
Strategic Highway NetworkInterstate STRAHNET route

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 I-185 (sbl) over Mulberry Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is I-185 (sbl) over Mulberry 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 October 2023.

How much traffic does I-185 (sbl) over Mulberry Creek carry?

About 26,500 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-185 (sbl) over Mulberry Creek?

The structure is 240 ft (73.2 m) long with a longest span of 90 ft (27.4 m) and a deck 44 ft wide.

Who owns I-185 (sbl) over Mulberry Creek?

It is owned by the State Highway Agency.