US Bridges

C-42-423 over Hannah CR

Good

Spartanburg County, South Carolina · 6.8 MI SE Woodruff · Structure no. 000000000007846

Built
1984
41 years old
Condition
Good
inspected November 2023
Type
Channel Beam
Prestressed Concrete
Length
90 ft
3 main spans
Daily traffic
225
2023 count
Owner
County
County Highway Agency

About this bridge

C-42-423 over Hannah CR is a prestressed concrete channel beam carrying C-42-423 over Hannah CR in Spartanburg County, South Carolina. It was built in 1984, so it is 41 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 225 vehicles a day, roughly 5% of them trucks, projected to reach 288 by 2043. The structure is 90 ft (27.4 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesC-42-423
CrossesHannah CR
Location6.8 MI SE Woodruff
RouteCounty Highway 423
Coordinates34.66456, -81.95656
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 protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65 US tons
Inventory rating34.3 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2023)
Projected traffic288 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 C-42-423 over Hannah CR built?

It was built in 1984, making it 41 years old in 2025.

What condition is C-42-423 over Hannah CR 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 November 2023.

How much traffic does C-42-423 over Hannah CR carry?

About 225 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is C-42-423 over Hannah CR?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns C-42-423 over Hannah CR?

It is owned by the County Highway Agency.