US Bridges

Local over Six Mile Creek

Fair

Sioux County, Iowa · 095473201 · Structure no. 000000000310961

Built
1979
46 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
90 ft
6 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Six Mile Creek is a wood or timber stringer/multi-beam or girder carrying Local over Six Mile Creek in Sioux County, Iowa. It was built in 1979, so it is 46 years old, older than the Iowa average of 45.5 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.

It carries about 50 vehicles a day, projected to reach 50 by 2044. The structure is 90 ft (27.4 m) long and 23 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLocal
CrossesSix Mile Creek
Location095473201
RouteCounty Highway 0
StateIowa
Coordinates43.01138, -96.42062
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 spans6
Design loadUnknown
Structure length90 ft (27.4 m)
Longest span15 ft (4.6 m)
Deck width23 ft (7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic50 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-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 over Six Mile Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Local over Six Mile 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 January 2024.

How much traffic does Local over Six Mile Creek carry?

About 50 vehicles per day (2022 count).

How long is Local over Six Mile Creek?

The structure is 90 ft (27.4 m) long with a longest span of 15 ft (4.6 m) and a deck 23 ft wide.

Who owns Local over Six Mile Creek?

It is owned by the County Highway Agency.