US Bridges

S-36-366 over Welch Creek

Fair

Newberry County, South Carolina · 5.7 MI SW Newberry · Structure no. 000000000003706

Built
1961
64 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete
Length
60 ft
4 main spans
Daily traffic
100
2023 count
Owner
State
State Highway Agency

About this bridge

S-36-366 over Welch Creek is a concrete slab carrying S-36-366 over Welch Creek in Newberry County, South Carolina. It was built in 1961, so it is 64 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 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, projected to reach 128 by 2043. The structure is 60 ft (18.3 m) long and 28 ft wide.

CarriesS-36-366
CrossesWelch Creek
Location5.7 MI SW Newberry
RouteState Highway 366
Coordinates34.2622, -81.71516
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.3 US tons
Inventory rating16.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadH 10
Structure length60 ft (18.3 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic128 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$86,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-36-366 over Welch Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is S-36-366 over Welch 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 July 2024.

How much traffic does S-36-366 over Welch Creek carry?

About 100 vehicles per day (2023 count).

How long is S-36-366 over Welch Creek?

The structure is 60 ft (18.3 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns S-36-366 over Welch Creek?

It is owned by the State Highway Agency.