US Bridges

SR1720 over Mountain Creek

Good

Stanly County, North Carolina · 0.7 Mi. S. Jct. SR1798 · Structure no. 000000001670018

Built
1991
34 years old
Condition
Good
inspected February 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
169 ft
2 main spans
Daily traffic
600
2019 count
Owner
State
State Highway Agency

About this bridge

SR1720 over Mountain Creek is a prestressed concrete stringer/multi-beam or girder carrying SR1720 over Mountain Creek in Stanly County, North Carolina. It was built in 1991, so it is 34 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 600 vehicles a day, roughly 6% of them trucks, projected to reach 1,200 by 2040. The structure is 169 ft (51.5 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR1720
CrossesMountain Creek
Location0.7 Mi. S. Jct. SR1798
RouteState Highway 1720
Coordinates35.3641, -80.11608
Functional classRural Minor Collector

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 inspectionFebruary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94.9 US tons
Inventory rating42 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length169 ft (51.5 m)
Longest span83 ft (25.2 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2019)
Projected traffic1,200 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1720 over Mountain Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is SR1720 over Mountain Creek 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 February 2022.

How much traffic does SR1720 over Mountain Creek carry?

About 600 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is SR1720 over Mountain Creek?

The structure is 169 ft (51.5 m) long with a longest span of 83 ft (25.2 m) and a deck 31 ft wide.

Who owns SR1720 over Mountain Creek?

It is owned by the State Highway Agency.