US Bridges

SR1736 over Middle Prong Roaring Riv

Fair

Wilkes County, North Carolina · .3 MI.S.JCT.SR1737 · Structure no. 000000001930162

Built
1978
47 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete Continuous
Length
73 ft
3 main spans
Daily traffic
590
2022 count
Owner
State
State Highway Agency

About this bridge

SR1736 over Middle Prong Roaring Riv is a concrete continuous culvert carrying SR1736 over Middle Prong Roaring Riv in Wilkes County, North Carolina. It was built in 1978, so it is 47 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 590 vehicles a day, roughly 6% of them trucks, projected to reach 1,180 by 2040. The structure is 73 ft (22.2 m) long. If it were closed, the detour would be 12.4 mi (20 km).

CarriesSR1736
CrossesMiddle Prong Roaring Riv
Location.3 MI.S.JCT.SR1737
RouteState Highway 1736
Coordinates36.34146, -81.09689
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.9 US tons
Inventory rating38.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length73 ft (22.2 m)
Longest span15 ft (4.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic590 (2022)
Projected traffic1,180 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 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 SR1736 over Middle Prong Roaring Riv built?

It was built in 1978, making it 47 years old in 2025.

What condition is SR1736 over Middle Prong Roaring Riv in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does SR1736 over Middle Prong Roaring Riv carry?

About 590 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR1736 over Middle Prong Roaring Riv?

The structure is 73 ft (22.2 m) long with a longest span of 15 ft (4.5 m).

Who owns SR1736 over Middle Prong Roaring Riv?

It is owned by the State Highway Agency.