US Bridges

SR1704 over East Prong Hunting Creek

Fair

Burke County, North Carolina · 1.0 MI.E.JCT.NC18 · Structure no. 000000000230097

Built
1989
36 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
37 ft
3 main spans
Daily traffic
2,400
2021 count
Owner
State
State Highway Agency

About this bridge

SR1704 over East Prong Hunting Creek is a concrete continuous culvert carrying SR1704 over East Prong Hunting Creek in Burke County, North Carolina. It was built in 1989, so it is 36 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 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 2,400 vehicles a day, roughly 7% of them trucks, projected to reach 4,800 by 2040. The structure is 37 ft (11.2 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesSR1704
CrossesEast Prong Hunting Creek
Location1.0 MI.E.JCT.NC18
RouteState Highway 1704
Coordinates35.7411, -81.66049
Functional classUrban Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
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 alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating40.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length37 ft (11.2 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 traffic2,400 (2021)
Projected traffic4,800 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 SR1704 over East Prong Hunting Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is SR1704 over East Prong Hunting Creek 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 November 2023.

How much traffic does SR1704 over East Prong Hunting Creek carry?

About 2,400 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is SR1704 over East Prong Hunting Creek?

The structure is 37 ft (11.2 m) long with a longest span of 12 ft (3.6 m).

Who owns SR1704 over East Prong Hunting Creek?

It is owned by the State Highway Agency.