US Bridges

S-8-47/LEBANON RD over Mill Branch

Fair

Berkeley County, South Carolina · 10 MI W Moncks Corner · Structure no. 000000000007427

Built
1981
44 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete
Length
45 ft
3 main spans
Daily traffic
100
2023 count
Owner
State
State Highway Agency

About this bridge

S-8-47/LEBANON RD over Mill Branch is a concrete slab carrying S-8-47/LEBANON RD over Mill Branch in Berkeley County, South Carolina. It was built in 1981, so it is 44 years old, younger 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 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 128 by 2043. The structure is 45 ft (13.7 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesS-8-47/LEBANON RD
CrossesMill Branch
Location10 MI W Moncks Corner
RouteState Highway 47
CountyBerkeley County
StateSouth Carolina
Coordinates33.16694, -80.21028
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating34.6 US tons
Inventory rating20.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 10
Structure length45 ft (13.7 m)
Longest span15 ft (4.6 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic128 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 S-8-47/LEBANON RD over Mill Branch built?

It was built in 1981, making it 44 years old in 2025.

What condition is S-8-47/LEBANON RD over Mill Branch 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 2023.

How much traffic does S-8-47/LEBANON RD over Mill Branch carry?

About 100 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-8-47/LEBANON RD over Mill Branch?

The structure is 45 ft (13.7 m) long with a longest span of 15 ft (4.6 m) and a deck 33 ft wide.

Who owns S-8-47/LEBANON RD over Mill Branch?

It is owned by the State Highway Agency.