US Bridges

SR1771 over Magazine Branch

Good

McDowell County, North Carolina · .1 MI.W.JCT.SR1772 · Structure no. 000000001110156

Built
2011
14 years old
Condition
Good
inspected January 2025
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
30 ft
1 main span
Daily traffic
1,100
2000 count
Owner
State
State Highway Agency

About this bridge

SR1771 over Magazine Branch is a aluminum, wrought iron, or cast iron culvert carrying SR1771 over Magazine Branch in McDowell County, North Carolina. It was built in 2011, so it is 14 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 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 1,100 vehicles a day, roughly 6% of them trucks, projected to reach 2,200 by 2040. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR1771
CrossesMagazine Branch
Location.1 MI.W.JCT.SR1772
RouteState Highway 1771
Coordinates35.601, -81.85406
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.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2000)
Projected traffic2,200 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR1771 over Magazine Branch built?

It was built in 2011, making it 14 years old in 2025.

What condition is SR1771 over Magazine 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 SR1771 over Magazine Branch carry?

About 1,100 vehicles per day (2000 count), of which roughly 6% are trucks.

How long is SR1771 over Magazine Branch?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m).

Who owns SR1771 over Magazine Branch?

It is owned by the State Highway Agency.