US Bridges

SR1710 over Harmon Creek

Poor

Yadkin County, North Carolina · .5 MI.S.JCT.SR1733 · Structure no. 000000001970011

Built
1967
58 years old
Condition
Poor
inspected June 2023
Type
Slab
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
440
2016 count
Owner
State
State Highway Agency

About this bridge

SR1710 over Harmon Creek is a prestressed concrete slab carrying SR1710 over Harmon Creek in Yadkin County, North Carolina. It was built in 1967, so it is 58 years old, older than the North Carolina average of 38.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: open, would be posted or closed except for temporary shoring.

It carries about 440 vehicles a day, roughly 6% of them trucks, projected to reach 880 by 2040. The structure is 46 ft (14 m) long and 25 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

CarriesSR1710
CrossesHarmon Creek
Location.5 MI.S.JCT.SR1733
RouteState Highway 1710
Coordinates36.10086, -80.58127
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, would be posted or closed except for temporary shoring
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.9 US tons
Inventory rating31 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length46 ft (14 m)
Longest span44 ft (13.4 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic440 (2016)
Projected traffic880 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1710 over Harmon Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is SR1710 over Harmon Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.

How much traffic does SR1710 over Harmon Creek carry?

About 440 vehicles per day (2016 count), of which roughly 6% are trucks.

How long is SR1710 over Harmon Creek?

The structure is 46 ft (14 m) long with a longest span of 44 ft (13.4 m) and a deck 25 ft wide.

Who owns SR1710 over Harmon Creek?

It is owned by the State Highway Agency.