US Bridges

Sullivan Road over Mercer Inlet

Fair

Chatham County, Georgia · 2.5 MI SE of Vernonburg · Structure no. 000000005150080

Built
1983
42 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete
Length
160 ft
8 main spans
Daily traffic
1,706
2024 count
Owner
County
County Highway Agency

About this bridge

Sullivan Road over Mercer Inlet is a concrete slab carrying Sullivan Road over Mercer Inlet in Chatham County, Georgia. It was built in 1983, so it is 42 years old, younger than the Georgia average of 47.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,706 vehicles a day, roughly 1% of them trucks, projected to reach 480 by 2031. The structure is 160 ft (48.8 m) long and 27 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesSullivan Road
CrossesMercer Inlet
Location2.5 MI SE of Vernonburg
RouteCounty Highway 119
CountyChatham County
StateGeorgia
Coordinates31.93041, -81.09249
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating48.9 US tons
Inventory rating29 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans8
Design loadHS 15
Structure length160 ft (48.8 m)
Longest span20 ft (6.1 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,706 (2024)
Projected traffic480 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$938,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Sullivan Road over Mercer Inlet built?

It was built in 1983, making it 42 years old in 2025.

What condition is Sullivan Road over Mercer Inlet in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does Sullivan Road over Mercer Inlet carry?

About 1,706 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Sullivan Road over Mercer Inlet?

The structure is 160 ft (48.8 m) long with a longest span of 20 ft (6.1 m) and a deck 27 ft wide.

Who owns Sullivan Road over Mercer Inlet?

It is owned by the County Highway Agency.