Ia 650 over Stream

Good

Guthrie County, Iowa · 0.4 Mi. N. of 160th Rd. · Structure no. 000000000699201

Built: 2016; 9 years old
Condition: Good; inspected October 2024
Type: Slab; Concrete Continuous
Length: 71 ft; 3 main spans
Daily traffic: —; 2022 count
Owner: State; State Park, Forest, or Reservation Agency

About this bridge

Ia 650 over Stream is a concrete continuous slab carrying Ia 650 over Stream in Guthrie County, Iowa. It was built in 2016, so it is 9 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.

No traffic count is recorded. The structure is 71 ft (21.6 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIa 650

CrossesStream

Location0.4 Mi. N. of 160th Rd.

RouteState Lands Road 0

CountyGuthrie County

StateIowa

Coordinates41.7725, -94.46756

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.

Component	Rating	Meaning
Deck	8 Very Good	No problems noted.
Superstructure	8 Very Good	No problems noted.
Substructure	8 Very Good	No problems noted.
Channel and channel protection	8 Very Good	No problems noted.

Last inspectionOctober 2024

Inspection intervalevery 24 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 adequacy9: Superior to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating46.4 US tons

Inventory rating35.7 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHL 93

Structure length71 ft (21.6 m)

Longest span28 ft (8.5 m)

Deck width33 ft (10.1 m)

Roadway width31 ft (9.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—

Projected traffic—

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed1.2 mi (2 km)

TollOn a free road

National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency

Maintained byState 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 Ia 650 over Stream built?

It was built in 2016, making it 9 years old in 2025.

What condition is Ia 650 over Stream 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 October 2024.

How much traffic does Ia 650 over Stream carry?

No traffic count is recorded for this structure.

How long is Ia 650 over Stream?

The structure is 71 ft (21.6 m) long with a longest span of 28 ft (8.5 m) and a deck 33 ft wide.

Who owns Ia 650 over Stream?

It is owned by the State Park, Forest, or Reservation Agency and maintained by the State Highway Agency.