US Bridges

SR1409 over Mill Creek

PoorPosted for load

McDowell County, North Carolina · 50 FT.W.JCT.SR1408 · Structure no. 000000001110141

Built
1961
64 years old
Condition
Poor
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
150
2022 count
Owner
State
State Highway Agency

About this bridge

SR1409 over Mill Creek is a steel stringer/multi-beam or girder carrying SR1409 over Mill Creek in McDowell County, North Carolina. It was built in 1961, so it is 64 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 150 vehicles a day, roughly 6% of them trucks, projected to reach 300 by 2040. The structure is 45 ft (13.7 m) long and 13 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSR1409
CrossesMill Creek
Location50 FT.W.JCT.SR1408
RouteState Highway 1409
Coordinates35.65645, -82.24773
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating24.9 US tons
Inventory rating16 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1 (+1 approach)
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span29 ft (8.8 m)
Deck width13 ft (4.1 m)
Roadway width12 ft (3.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic300 by 2040
Trucks6%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1409 over Mill Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is SR1409 over Mill Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2023.

How much traffic does SR1409 over Mill Creek carry?

About 150 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR1409 over Mill Creek?

The structure is 45 ft (13.7 m) long with a longest span of 29 ft (8.8 m) and a deck 13 ft wide.

Who owns SR1409 over Mill Creek?

It is owned by the State Highway Agency.