US Bridges

630th ST over Creek

Good

Cherokee County, Iowa · 090401901 · Structure no. 000000000107301

Built
2005
20 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

630th ST over Creek is a concrete continuous culvert carrying 630th ST over Creek in Cherokee County, Iowa. It was built in 2005, so it is 20 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 8 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 2043. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries630th ST
CrossesCreek
Location090401901
RouteCounty Highway 0
StateIowa
Coordinates42.60533, -95.62187
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic15 by 2043
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$30,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 630th ST over Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is 630th ST over 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 August 2023.

How much traffic does 630th ST over Creek carry?

About 15 vehicles per day (2022 count).

How long is 630th ST over Creek?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m).

Who owns 630th ST over Creek?

It is owned by the County Highway Agency.