US Bridges

SR1635 over Mill Creek

Good

Union County, North Carolina · 0.8 Mi. E. Jct. NC200 · Structure no. 000000001790027

Built
2006
19 years old
Condition
Good
inspected June 2021
Type
Culvert
Steel
Length
29 ft
2 main spans
Daily traffic
490
2015 count
Owner
State
State Highway Agency

About this bridge

SR1635 over Mill Creek is a steel culvert carrying SR1635 over Mill Creek in Union County, North Carolina. It was built in 2006, so it is 19 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 490 vehicles a day, roughly 7% of them trucks, projected to reach 980 by 2040. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR1635
CrossesMill Creek
Location0.8 Mi. E. Jct. NC200
RouteState Highway 1635
Coordinates35.06746, -80.46769
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJune 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length29 ft (8.8 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 traffic490 (2015)
Projected traffic980 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 SR1635 over Mill Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is SR1635 over Mill 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 June 2021.

How much traffic does SR1635 over Mill Creek carry?

About 490 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is SR1635 over Mill Creek?

The structure is 29 ft (8.8 m) long with a longest span of 12 ft (3.6 m).

Who owns SR1635 over Mill Creek?

It is owned by the State Highway Agency.