US Bridges

G15 130th ST over North River

Good

Adair County, Iowa · 1.6 MI W of P28 on G15 · Structure no. 000000000057531

Built
2024
1 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete Continuous
Length
101 ft
3 main spans
Daily traffic
132
2023 count
Owner
County
County Highway Agency

About this bridge

G15 130th ST over North River is a concrete continuous slab carrying G15 130th ST over North River in Adair 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 132 vehicles a day, projected to reach 132 by 2043. The structure is 101 ft (30.8 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesG15 130th ST
CrossesNorth River
Location1.6 MI W of P28 on G15
RouteCounty Highway 0
StateIowa
Coordinates41.46053, -94.34898
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
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 above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating44.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHL 93
Structure length101 ft (30.8 m)
Longest span39 ft (11.9 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic132 (2023)
Projected traffic132 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 G15 130th ST over North River built?

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

What condition is G15 130th ST over North River 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 G15 130th ST over North River carry?

About 132 vehicles per day (2023 count).

How long is G15 130th ST over North River?

The structure is 101 ft (30.8 m) long with a longest span of 39 ft (11.9 m) and a deck 33 ft wide.

Who owns G15 130th ST over North River?

It is owned by the County Highway Agency.