US Bridges

SR3418 over Big Alamance Creek

Good

Guilford County, North Carolina · 0.2 MI W JCT SR3549 · Structure no. 000000000811434

Built
2015
10 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
3,600
2021 count
Owner
State
State Highway Agency

About this bridge

SR3418 over Big Alamance Creek is a concrete continuous culvert carrying SR3418 over Big Alamance Creek in Guilford County, North Carolina. It was built in 2015, so it is 10 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 3,600 vehicles a day, roughly 8% of them trucks, projected to reach 7,200 by 2040. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesSR3418
CrossesBig Alamance Creek
Location0.2 MI W JCT SR3549
RouteState Highway 3418
Coordinates35.98192, -79.73817
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length25 ft (7.6 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 traffic3,600 (2021)
Projected traffic7,200 by 2040
Trucks8%
Lanes on structure3
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 SR3418 over Big Alamance Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is SR3418 over Big Alamance 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 October 2023.

How much traffic does SR3418 over Big Alamance Creek carry?

About 3,600 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is SR3418 over Big Alamance Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.6 m).

Who owns SR3418 over Big Alamance Creek?

It is owned by the State Highway Agency.