US Bridges

Sc 102 over Mount Prong Creek

Fair

Chesterfield County, South Carolina · 3.7 MI N of Patrick · Structure no. 000000000001436

Built
1948
77 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
38 ft
3 main spans
Daily traffic
1,400
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 102 over Mount Prong Creek is a concrete culvert carrying Sc 102 over Mount Prong Creek in Chesterfield County, South Carolina. It was built in 1948, so it is 77 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 1,400 vehicles a day, roughly 9% of them trucks, projected to reach 2,044 by 2043. The structure is 38 ft (11.5 m) long and 32 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesSc 102
CrossesMount Prong Creek
Location3.7 MI N of Patrick
RouteState Highway 102
CountyChesterfield County
StateSouth Carolina
Coordinates34.61913, -80.08294
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating33.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length38 ft (11.5 m)
Longest span12 ft (3.7 m)
Deck width32 ft (9.7 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2023)
Projected traffic2,044 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$77,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 102 over Mount Prong Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is Sc 102 over Mount Prong 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 April 2024.

How much traffic does Sc 102 over Mount Prong Creek carry?

About 1,400 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Sc 102 over Mount Prong Creek?

The structure is 38 ft (11.5 m) long with a longest span of 12 ft (3.7 m) and a deck 32 ft wide.

Who owns Sc 102 over Mount Prong Creek?

It is owned by the State Highway Agency.