US Bridges

SR 204 Spur over Harmon Canal

Good

Chatham County, Georgia · 0.25 MI S of Mont-Cross R · Structure no. 000000005101440

Built
1977
48 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Concrete
Length
200 ft
5 main spans
Daily traffic
10,600
2024 count
Owner
State
State Highway Agency

About this bridge

SR 204 Spur over Harmon Canal is a concrete tee beam carrying SR 204 Spur over Harmon Canal in Chatham County, Georgia. It was built in 1977, so it is 48 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 10,600 vehicles a day, roughly 1% of them trucks, projected to reach 22,860 by 2031. The structure is 200 ft (61 m) long and 65 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSR 204 Spur
CrossesHarmon Canal
Location0.25 MI S of Mont-Cross R
RouteState Highway 204
StateGeorgia
Coordinates31.98831, -81.1049
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating33 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length200 ft (61 m)
Longest span40 ft (12.2 m)
Deck width65 ft (19.7 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,600 (2024)
Projected traffic22,860 by 2031
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.8 mi (11 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$1.8 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 204 Spur over Harmon Canal built?

It was built in 1977, making it 48 years old in 2025.

What condition is SR 204 Spur over Harmon Canal 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 September 2024.

How much traffic does SR 204 Spur over Harmon Canal carry?

About 10,600 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 204 Spur over Harmon Canal?

The structure is 200 ft (61 m) long with a longest span of 40 ft (12.2 m) and a deck 65 ft wide.

Who owns SR 204 Spur over Harmon Canal?

It is owned by the State Highway Agency.