US Bridges

CO Home RD over Big Creek

Good

Linn County, Iowa · 084051801 · Structure no. 000000000221231

Built
2006
19 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete Continuous
Length
115 ft
3 main spans
Daily traffic
1,935
2022 count
Owner
County
County Highway Agency

About this bridge

CO Home RD over Big Creek is a concrete continuous slab carrying CO Home RD over Big Creek in Linn County, Iowa. It was built in 2006, so it is 19 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 1,935 vehicles a day, roughly 13% of them trucks, projected to reach 1,935 by 2044. The structure is 115 ft (35.1 m) long and 40 ft wide.

CarriesCO Home RD
CrossesBig Creek
Location084051801
RouteCounty Highway 0
StateIowa
Coordinates42.09295, -91.47417
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating50.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span44 ft (13.4 m)
Deck width40 ft (12.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,935 (2022)
Projected traffic1,935 by 2044
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 CO Home RD over Big Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is CO Home RD over Big 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 September 2024.

How much traffic does CO Home RD over Big Creek carry?

About 1,935 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is CO Home RD over Big Creek?

The structure is 115 ft (35.1 m) long with a longest span of 44 ft (13.4 m) and a deck 40 ft wide.

Who owns CO Home RD over Big Creek?

It is owned by the County Highway Agency.