US Bridges

S-42-978 over North Pacolet River

Good

Spartanburg County, South Carolina · 7.5 MI SW Chesnee · Structure no. 000000000009269

Built
1997
28 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
260 ft
2 main spans
Daily traffic
275
2023 count
Owner
State
State Highway Agency

About this bridge

S-42-978 over North Pacolet River is a steel continuous stringer/multi-beam or girder carrying S-42-978 over North Pacolet River in Spartanburg County, South Carolina. It was built in 1997, so it is 28 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 275 vehicles a day, roughly 5% of them trucks, projected to reach 352 by 2043. The structure is 260 ft (79.2 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesS-42-978
CrossesNorth Pacolet River
Location7.5 MI SW Chesnee
RouteState Highway 978
Coordinates35.12349, -81.98965
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40 US tons
Inventory rating31.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 25 or greater
Structure length260 ft (79.2 m)
Longest span100 ft (30.5 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic275 (2023)
Projected traffic352 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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-42-978 over North Pacolet River built?

It was built in 1997, making it 28 years old in 2025.

What condition is S-42-978 over North Pacolet River 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 September 2023.

How much traffic does S-42-978 over North Pacolet River carry?

About 275 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-42-978 over North Pacolet River?

The structure is 260 ft (79.2 m) long with a longest span of 100 ft (30.5 m) and a deck 39 ft wide.

Who owns S-42-978 over North Pacolet River?

It is owned by the State Highway Agency.