US Bridges

Island Expressway over Richardson Creek

Fair

Chatham County, Georgia · 1 MI W of Int SR 26 · Structure no. 000000005101330

Built
1963
62 years old, rebuilt 1989
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
231 ft
7 main spans
Daily traffic
21,400
2024 count
Owner
County
County Highway Agency

About this bridge

Island Expressway over Richardson Creek is a prestressed concrete stringer/multi-beam or girder carrying Island Expressway over Richardson Creek in Chatham County, Georgia. It was built in 1963 and reconstructed in 1989, so it is 62 years old, older 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 6 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 21,400 vehicles a day, roughly 3% of them trucks, projected to reach 31,110 by 2032. The structure is 231 ft (70.4 m) long and 86 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesIsland Expressway
CrossesRichardson Creek
Location1 MI W of Int SR 26
RouteCounty Highway 787
StateGeorgia
Coordinates32.05109, -81.01239
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87 US tons
Inventory rating51.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length231 ft (70.4 m)
Longest span33 ft (10.1 m)
Deck width86 ft (26.2 m)
Roadway width83 ft (25.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,400 (2024)
Projected traffic31,110 by 2032
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$2.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Island Expressway over Richardson Creek built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1989.

What condition is Island Expressway over Richardson Creek 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 June 2024.

How much traffic does Island Expressway over Richardson Creek carry?

About 21,400 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Island Expressway over Richardson Creek?

The structure is 231 ft (70.4 m) long with a longest span of 33 ft (10.1 m) and a deck 86 ft wide.

Who owns Island Expressway over Richardson Creek?

It is owned by the County Highway Agency.