US Bridges

N Isett Ave over Little Mosquito Creek

Good

Muscatine County, Iowa · 078022602 · Structure no. 000000000258161

Built
2024
1 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete Continuous
Length
101 ft
3 main spans
Daily traffic
53
2023 count
Owner
County
County Highway Agency

About this bridge

N Isett Ave over Little Mosquito Creek is a concrete continuous slab carrying N Isett Ave over Little Mosquito Creek in Muscatine County, Iowa. It was built in 2024, so it is 1 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 53 vehicles a day, projected to reach 53 by 2043. The structure is 101 ft (30.8 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesN Isett Ave
CrossesLittle Mosquito Creek
Location078022602
RouteCounty Highway 0
StateIowa
Coordinates41.53586, -91.05771
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating55 US tons
Inventory rating42.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length101 ft (30.8 m)
Longest span39 ft (11.9 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53 (2023)
Projected traffic53 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 N Isett Ave over Little Mosquito Creek built?

It was built in 2024, making it 1 years old in 2025.

What condition is N Isett Ave over Little Mosquito 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 N Isett Ave over Little Mosquito Creek carry?

About 53 vehicles per day (2023 count).

How long is N Isett Ave over Little Mosquito Creek?

The structure is 101 ft (30.8 m) long with a longest span of 39 ft (11.9 m) and a deck 27 ft wide.

Who owns N Isett Ave over Little Mosquito Creek?

It is owned by the County Highway Agency.