US Bridges

Coastal Pi over Wilshire Canal

Fair

Chatham County, Georgia · In SE Savannah · Structure no. 000000005151110

Built
2007
18 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
42 ft
1 main span
Daily traffic
1,706
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Coastal Pi over Wilshire Canal is a prestressed concrete box beam or girders - multiple carrying Coastal Pi over Wilshire Canal in Chatham County, Georgia. It was built in 2007, so it is 18 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 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 1,706 vehicles a day, projected to reach 1,606 by 2035. The structure is 42 ft (12.8 m) long and 32 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesCoastal Pi
CrossesWilshire Canal
LocationIn SE Savannah
RouteCity Street 9999
StateGeorgia
Coordinates31.99193, -81.14224
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 rating60 US tons
Inventory rating35.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length42 ft (12.8 m)
Longest span42 ft (12.8 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,706 (2024)
Projected traffic1,606 by 2035
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$5.6 million (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Coastal Pi over Wilshire Canal built?

It was built in 2007, making it 18 years old in 2025.

What condition is Coastal Pi over Wilshire Canal 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 Coastal Pi over Wilshire Canal carry?

About 1,706 vehicles per day (2024 count).

How long is Coastal Pi over Wilshire Canal?

The structure is 42 ft (12.8 m) long with a longest span of 42 ft (12.8 m) and a deck 32 ft wide.

Who owns Coastal Pi over Wilshire Canal?

It is owned by the City or Municipal Highway Agency.