US Bridges

US 1 over Jackson Branch

Fair

Richland County, South Carolina · 6 MI NE of Columbia · Structure no. 000000000001759

Built
1950
75 years old, rebuilt 1970
Condition
Fair
inspected February 2024
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
18,100
2023 count
Owner
State
State Highway Agency

About this bridge

US 1 over Jackson Branch is a concrete continuous culvert carrying US 1 over Jackson Branch in Richland County, South Carolina. It was built in 1950 and reconstructed in 1970, so it is 75 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 18,100 vehicles a day, roughly 3% of them trucks, projected to reach 24,978 by 2043. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUS 1
CrossesJackson Branch
Location6 MI NE of Columbia
RouteU.S. Route 1
CountyRichland County
StateSouth Carolina
Coordinates34.06695, -80.95479
Functional classUrban Other Principal Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating29.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 15
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,100 (2023)
Projected traffic24,978 by 2043
Trucks3%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 1 over Jackson Branch built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1970.

What condition is US 1 over Jackson 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 February 2024.

How much traffic does US 1 over Jackson Branch carry?

About 18,100 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is US 1 over Jackson Branch?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns US 1 over Jackson Branch?

It is owned by the State Highway Agency.