US Bridges

SR1570 over Mill Creek

FairPosted for load

Wilkes County, North Carolina · .2 MI.E.JCT.SR1567 · Structure no. 000000001930343

Built
1976
49 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
37 ft
1 main span
Daily traffic
640
2022 count
Owner
State
State Highway Agency

About this bridge

SR1570 over Mill Creek is a steel stringer/multi-beam or girder carrying SR1570 over Mill Creek in Wilkes County, North Carolina. It was built in 1976, so it is 49 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. Its operating status is: posted for load restriction.

It carries about 640 vehicles a day, roughly 6% of them trucks, projected to reach 1,280 by 2040. The structure is 37 ft (11.2 m) long and 24 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesSR1570
CrossesMill Creek
Location.2 MI.E.JCT.SR1567
RouteState Highway 1570
Coordinates36.27838, -81.26769
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43 US tons
Inventory rating25.9 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length37 ft (11.2 m)
Longest span34 ft (10.3 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic640 (2022)
Projected traffic1,280 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 SR1570 over Mill Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is SR1570 over Mill 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 September 2024.

How much traffic does SR1570 over Mill Creek carry?

About 640 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR1570 over Mill Creek?

The structure is 37 ft (11.2 m) long with a longest span of 34 ft (10.3 m) and a deck 24 ft wide.

Who owns SR1570 over Mill Creek?

It is owned by the State Highway Agency.