US Bridges

SR 45 over Merrett Creek

Good

Calhoun County, Georgia · 4 MI NE of Morgan · Structure no. 000000003700320

Built
1992
33 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
160 ft
4 main spans
Daily traffic
1,680
2024 count
Owner
State
State Highway Agency

About this bridge

SR 45 over Merrett Creek is a prestressed concrete stringer/multi-beam or girder carrying SR 45 over Merrett Creek in Calhoun County, Georgia. It was built in 1992, so it is 33 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 1,680 vehicles a day, roughly 1% of them trucks, projected to reach 2,550 by 2031. The structure is 160 ft (48.8 m) long and 44 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR 45
CrossesMerrett Creek
Location4 MI NE of Morgan
RouteState Highway 45
StateGeorgia
Coordinates31.58784, -84.58038
Functional classRural Major 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 inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.9 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length160 ft (48.8 m)
Longest span40 ft (12.2 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,680 (2024)
Projected traffic2,550 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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$938,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 45 over Merrett Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is SR 45 over Merrett 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 January 2025.

How much traffic does SR 45 over Merrett Creek carry?

About 1,680 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 45 over Merrett Creek?

The structure is 160 ft (48.8 m) long with a longest span of 40 ft (12.2 m) and a deck 44 ft wide.

Who owns SR 45 over Merrett Creek?

It is owned by the State Highway Agency.