US Bridges

Local RD over Six Mile Creek

Good

Sioux County, Iowa · 095471801 · Structure no. 000000000310836

Built
1992
33 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
105 ft
7 main spans
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

Local RD over Six Mile Creek is a wood or timber stringer/multi-beam or girder carrying Local RD over Six Mile Creek in Sioux County, Iowa. It was built in 1992, so it is 33 years old, younger than the Iowa average of 45.5 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 15 vehicles a day, projected to reach 15 by 2044. The structure is 105 ft (32 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLocal RD
CrossesSix Mile Creek
Location095471801
RouteCounty Highway 0
StateIowa
Coordinates43.05505, -96.44277
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.5 US tons
Inventory rating22.6 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans7
Design loadHS 20
Structure length105 ft (32 m)
Longest span15 ft (4.6 m)
Deck width22 ft (6.8 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic15 by 2044
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Local RD over Six Mile Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Local RD over Six Mile 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 January 2024.

How much traffic does Local RD over Six Mile Creek carry?

About 15 vehicles per day (2022 count).

How long is Local RD over Six Mile Creek?

The structure is 105 ft (32 m) long with a longest span of 15 ft (4.6 m) and a deck 22 ft wide.

Who owns Local RD over Six Mile Creek?

It is owned by the County Highway Agency.