US Bridges

N 52 490th Ave over Jack CR Dd #17

Good

Emmet County, Iowa · 98321502 · Structure no. 000000000148472

Built
2019
6 years old
Condition
Good
inspected August 2022
Type
Slab
Concrete Continuous
Length
114 ft
3 main spans
Daily traffic
589
2022 count
Owner
County
County Highway Agency

About this bridge

N 52 490th Ave over Jack CR Dd #17 is a concrete continuous slab carrying N 52 490th Ave over Jack CR Dd #17 in Emmet County, Iowa. It was built in 2019, so it is 6 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 589 vehicles a day, roughly 32% of them trucks, projected to reach 589 by 2043. The structure is 114 ft (34.7 m) long and 33 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesN 52 490th Ave
CrossesJack CR Dd #17
Location98321502
RouteCounty Highway 0
CountyEmmet County
StateIowa
Coordinates43.30095, -94.6201
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.9 US tons
Inventory rating43.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length114 ft (34.7 m)
Longest span43 ft (13.1 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic589 (2022)
Projected traffic589 by 2043
Trucks32%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 N 52 490th Ave over Jack CR Dd #17 built?

It was built in 2019, making it 6 years old in 2025.

What condition is N 52 490th Ave over Jack CR Dd #17 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 2022.

How much traffic does N 52 490th Ave over Jack CR Dd #17 carry?

About 589 vehicles per day (2022 count), of which roughly 32% are trucks.

How long is N 52 490th Ave over Jack CR Dd #17?

The structure is 114 ft (34.7 m) long with a longest span of 43 ft (13.1 m) and a deck 33 ft wide.

Who owns N 52 490th Ave over Jack CR Dd #17?

It is owned by the County Highway Agency.