US Bridges

SR1720 over Upper Little River

Good

Caldwell County, North Carolina · .2 MI.W.JCT.US64 NC90 · Structure no. 000000000270234

Built
1993
32 years old
Condition
Good
inspected March 2022
Type
Culvert
Steel
Length
27 ft
2 main spans
Daily traffic
110
2000 count
Owner
State
State Highway Agency

About this bridge

SR1720 over Upper Little River is a steel culvert carrying SR1720 over Upper Little River in Caldwell County, North Carolina. It was built in 1993, so it is 32 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 110 vehicles a day, roughly 6% of them trucks, projected to reach 220 by 2040. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSR1720
CrossesUpper Little River
Location.2 MI.W.JCT.US64 NC90
RouteState Highway 1720
Coordinates35.91043, -81.44342
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 inspectionMarch 2022
Inspection intervalevery 48 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 rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length27 ft (8.2 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2000)
Projected traffic220 by 2040
Trucks6%
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 SR1720 over Upper Little River built?

It was built in 1993, making it 32 years old in 2025.

What condition is SR1720 over Upper Little 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 March 2022.

How much traffic does SR1720 over Upper Little River carry?

About 110 vehicles per day (2000 count), of which roughly 6% are trucks.

How long is SR1720 over Upper Little River?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.6 m).

Who owns SR1720 over Upper Little River?

It is owned by the State Highway Agency.