US Bridges

Crystal Lake Road over Big Creek

GoodPosted for load

Irwin County, Georgia · 3 MI NW of Irwinville · Structure no. 000000015500430

Built
1968
57 years old
Condition
Good
inspected August 2023
Type
Tee Beam
Concrete
Length
120 ft
4 main spans
Daily traffic
140
2024 count
Owner
County
County Highway Agency

About this bridge

Crystal Lake Road over Big Creek is a concrete tee beam carrying Crystal Lake Road over Big Creek in Irwin County, Georgia. It was built in 1968, so it is 57 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. Its operating status is: posted for load restriction.

It carries about 140 vehicles a day, roughly 1% of them trucks, projected to reach 255 by 2032. The structure is 120 ft (36.6 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCrystal Lake Road
CrossesBig Creek
Location3 MI NW of Irwinville
RouteCounty Highway 1990
StateGeorgia
Coordinates31.67221, -83.41993
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.9 US tons
Inventory rating21.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length120 ft (36.6 m)
Longest span30 ft (9.1 m)
Deck width30 ft (9.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2024)
Projected traffic255 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$703,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Crystal Lake Road over Big Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is Crystal Lake Road over Big 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 August 2023.

How much traffic does Crystal Lake Road over Big Creek carry?

About 140 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Crystal Lake Road over Big Creek?

The structure is 120 ft (36.6 m) long with a longest span of 30 ft (9.1 m) and a deck 30 ft wide.

Who owns Crystal Lake Road over Big Creek?

It is owned by the County Highway Agency.