US Bridges

SR1568 over Tidal Ditch

Good

Onslow County, North Carolina · 0.8MI.E. of NC210 · Structure no. 000000001330232

Built
1990
35 years old
Condition
Good
inspected February 2024
Type
Slab
Concrete Continuous
Length
140 ft
7 main spans
Daily traffic
4,900
2021 count
Owner
State
State Highway Agency

About this bridge

SR1568 over Tidal Ditch is a concrete continuous slab carrying SR1568 over Tidal Ditch in Onslow County, North Carolina. It was built in 1990, so it is 35 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 4,900 vehicles a day, roughly 7% of them trucks, projected to reach 9,800 by 2040. The structure is 140 ft (42.6 m) long and 30 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesSR1568
CrossesTidal Ditch
Location0.8MI.E. of NC210
RouteState Highway 1568
CountyOnslow County
StateNorth Carolina
Coordinates34.50286, -77.39948
Functional classRural Major 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 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating35.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20 + Mod
Structure length140 ft (42.6 m)
Longest span19 ft (5.7 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,900 (2021)
Projected traffic9,800 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 SR1568 over Tidal Ditch built?

It was built in 1990, making it 35 years old in 2025.

What condition is SR1568 over Tidal Ditch 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 2024.

How much traffic does SR1568 over Tidal Ditch carry?

About 4,900 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is SR1568 over Tidal Ditch?

The structure is 140 ft (42.6 m) long with a longest span of 19 ft (5.7 m) and a deck 30 ft wide.

Who owns SR1568 over Tidal Ditch?

It is owned by the State Highway Agency.