US Bridges

Yankee Ave over Silver Creek

Good

Howard County, Iowa · 099111202 · Structure no. 000000000182841

Built
2012
13 years old
Condition
Good
inspected March 2021
Type
Slab
Concrete Continuous
Length
123 ft
3 main spans
Daily traffic
91
2022 count
Owner
County
County Highway Agency

About this bridge

Yankee Ave over Silver Creek is a concrete continuous slab carrying Yankee Ave over Silver Creek in Howard County, Iowa. It was built in 2012, so it is 13 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 91 vehicles a day, projected to reach 91 by 2043. The structure is 123 ft (37.6 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesYankee Ave
CrossesSilver Creek
Location099111202
RouteCounty Highway 0
StateIowa
Coordinates43.40498, -92.10008
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating44 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length123 ft (37.6 m)
Longest span47 ft (14.3 m)
Deck width31 ft (9.3 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic91 (2022)
Projected traffic91 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Yankee Ave over Silver Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Yankee Ave over Silver 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 March 2021.

How much traffic does Yankee Ave over Silver Creek carry?

About 91 vehicles per day (2022 count).

How long is Yankee Ave over Silver Creek?

The structure is 123 ft (37.6 m) long with a longest span of 47 ft (14.3 m) and a deck 31 ft wide.

Who owns Yankee Ave over Silver Creek?

It is owned by the County Highway Agency.