US Bridges

SR1560 over Dogback Spring Branch

Good

McDowell County, North Carolina · .8 MI.S.JCT.US221 · Structure no. 000000001110125

Built
2016
9 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete Continuous
Length
21 ft
1 main span
Daily traffic
200
2016 count
Owner
State
State Highway Agency

About this bridge

SR1560 over Dogback Spring Branch is a concrete continuous culvert carrying SR1560 over Dogback Spring Branch in McDowell County, North Carolina. It was built in 2016, so it is 9 years old, younger than the North Carolina average of 38.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 200 vehicles a day, roughly 6% of them trucks, projected to reach 400 by 2040. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 5.6 mi (9 km).

CarriesSR1560
CrossesDogback Spring Branch
Location.8 MI.S.JCT.US221
RouteState Highway 1560
Coordinates35.87289, -81.94189
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
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating46 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans1
Design loadHL 93
Structure length21 ft (6.4 m)
Longest span20 ft (6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2016)
Projected traffic400 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 SR1560 over Dogback Spring Branch built?

It was built in 2016, making it 9 years old in 2025.

What condition is SR1560 over Dogback Spring 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 January 2025.

How much traffic does SR1560 over Dogback Spring Branch carry?

About 200 vehicles per day (2016 count), of which roughly 6% are trucks.

How long is SR1560 over Dogback Spring Branch?

The structure is 21 ft (6.4 m) long with a longest span of 20 ft (6 m).

Who owns SR1560 over Dogback Spring Branch?

It is owned by the State Highway Agency.