US Bridges

CR 723 Peninsula D over Blackbank River Trib

GoodPosted for load

Glynn County, Georgia · 7 MI E of Brunswick · Structure no. 000000012750070

Built
1987
38 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
90 ft
5 main spans
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

CR 723 Peninsula D over Blackbank River Trib is a concrete stringer/multi-beam or girder carrying CR 723 Peninsula D over Blackbank River Trib in Glynn County, Georgia. It was built in 1987, so it is 38 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, roughly 1% of them trucks, projected to reach 150 by 2031. The structure is 90 ft (27.4 m) long and 23 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesCR 723 Peninsula D
CrossesBlackbank River Trib
Location7 MI E of Brunswick
RouteCounty Highway 723
StateGeorgia
Coordinates31.19254, -81.36615
Functional classUrban Local

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 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating26.9 US tons

Structure

MaterialConcrete
DeckWood or timber
Main spans5
Design loadH 15
Structure length90 ft (27.4 m)
Longest span18 ft (5.5 m)
Deck width23 ft (6.9 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic150 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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$527,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 723 Peninsula D over Blackbank River Trib built?

It was built in 1987, making it 38 years old in 2025.

What condition is CR 723 Peninsula D over Blackbank River Trib 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 2024.

How much traffic does CR 723 Peninsula D over Blackbank River Trib carry?

About 50 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is CR 723 Peninsula D over Blackbank River Trib?

The structure is 90 ft (27.4 m) long with a longest span of 18 ft (5.5 m) and a deck 23 ft wide.

Who owns CR 723 Peninsula D over Blackbank River Trib?

It is owned by the County Highway Agency.