US Bridges

S-1-184 over Miller Branch

Good

Abbeville County, South Carolina · 3.5MI SE Due West · Structure no. 000000000004916

Built
2002
23 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete
Length
60 ft
4 main spans
Daily traffic
125
2023 count
Owner
State
State Highway Agency

About this bridge

S-1-184 over Miller Branch is a concrete slab carrying S-1-184 over Miller Branch in Abbeville County, South Carolina. It was built in 2002, so it is 23 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 125 vehicles a day, roughly 5% of them trucks, projected to reach 160 by 2043. The structure is 60 ft (18.3 m) long and 38 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesS-1-184
CrossesMiller Branch
Location3.5MI SE Due West
RouteState Highway 184
Coordinates34.32425, -82.32941
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span15 ft (4.6 m)
Deck width38 ft (11.7 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2023)
Projected traffic160 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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-1-184 over Miller Branch built?

It was built in 2002, making it 23 years old in 2025.

What condition is S-1-184 over Miller Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does S-1-184 over Miller Branch carry?

About 125 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-1-184 over Miller Branch?

The structure is 60 ft (18.3 m) long with a longest span of 15 ft (4.6 m) and a deck 38 ft wide.

Who owns S-1-184 over Miller Branch?

It is owned by the State Highway Agency.