US Bridges

165th ST over Wapsipinican Overflow

Good

Bremer County, Iowa · 092120203 · Structure no. 000000000079481

Built
2009
16 years old
Condition
Good
inspected April 2022
Type
Slab
Concrete Continuous
Length
135 ft
3 main spans
Daily traffic
108
2022 count
Owner
County
County Highway Agency

About this bridge

165th ST over Wapsipinican Overflow is a concrete continuous slab carrying 165th ST over Wapsipinican Overflow in Bremer County, Iowa. It was built in 2009, so it is 16 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 108 vehicles a day, roughly 8% of them trucks, projected to reach 108 by 2043. The structure is 135 ft (41.1 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries165th ST
CrossesWapsipinican Overflow
Location092120203
RouteCounty Highway 0
StateIowa
Coordinates42.80847, -92.22191
Functional classRural Minor Collector

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 inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.4 US tons
Inventory rating54.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length135 ft (41.1 m)
Longest span53 ft (16.2 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic108 (2022)
Projected traffic108 by 2043
Trucks8%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 165th ST over Wapsipinican Overflow built?

It was built in 2009, making it 16 years old in 2025.

What condition is 165th ST over Wapsipinican Overflow 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 April 2022.

How much traffic does 165th ST over Wapsipinican Overflow carry?

About 108 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is 165th ST over Wapsipinican Overflow?

The structure is 135 ft (41.1 m) long with a longest span of 53 ft (16.2 m) and a deck 33 ft wide.

Who owns 165th ST over Wapsipinican Overflow?

It is owned by the County Highway Agency.