US Bridges

Sc 700/MAYBANK HWY over Church Creek

Fair

Charleston County, South Carolina · Wadmalaw Island · Structure no. 000000000006433

Built
1974
51 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
210 ft
3 main spans
Daily traffic
6,700
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 700/MAYBANK HWY over Church Creek is a prestressed concrete stringer/multi-beam or girder carrying Sc 700/MAYBANK HWY over Church Creek in Charleston County, South Carolina. It was built in 1974, so it is 51 years old, older than the South Carolina average of 48 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 6,700 vehicles a day, roughly 6% of them trucks, projected to reach 9,179 by 2043. The structure is 210 ft (64 m) long and 48 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSc 700/MAYBANK HWY
CrossesChurch Creek
LocationWadmalaw Island
RouteState Highway 700
Coordinates32.71447, -80.09149
Functional classRural Major Collector

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.
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating36.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length210 ft (64 m)
Longest span70 ft (21.3 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,700 (2023)
Projected traffic9,179 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 700/MAYBANK HWY over Church Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Sc 700/MAYBANK HWY over Church 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 Sc 700/MAYBANK HWY over Church Creek carry?

About 6,700 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Sc 700/MAYBANK HWY over Church Creek?

The structure is 210 ft (64 m) long with a longest span of 70 ft (21.3 m) and a deck 48 ft wide.

Who owns Sc 700/MAYBANK HWY over Church Creek?

It is owned by the State Highway Agency.