Springbrook SP over Stream

Poor

Guthrie County, Iowa · In Springbrook St. Pk. · Structure no. 000000000699210

Built: 1934; 91 years old
Condition: Poor; inspected June 2024
Type: Culvert; Concrete Continuous
Length: 40 ft; 4 main spans
Daily traffic: —; 2023 count
Owner: State; State Park, Forest, or Reservation Agency

About this bridge

Springbrook SP over Stream is a concrete continuous culvert carrying Springbrook SP over Stream in Guthrie County, Iowa. It was built in 1934, so it is 91 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

No traffic count is recorded. The structure is 40 ft (12.2 m) long.

Location

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CarriesSpringbrook SP

CrossesStream

LocationIn Springbrook St. Pk.

RouteState Lands Road 0

CountyGuthrie County

StateIowa

Coordinates41.77537, -94.4655

Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

Component	Rating	Meaning
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.
Culvert	4 Poor	Advanced section loss, deterioration, spalling or scour.

Last inspectionJune 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation4: Meets minimum tolerable limits to be left in place as is

Waterway adequacy6: Equal to present minimum criteria

Approach roadway alignment6: Equal to present minimum criteria

Operating rating48.6 US tons

Inventory rating36 US tons

Structure

Structure typeCulvert

MaterialConcrete Continuous

DeckNot applicable

Main spans4

Design loadHS 20

Structure length40 ft (12.2 m)

Longest span10 ft (3 m)

Deck width0 ft (0 m)

Roadway width0 ft (0 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 closed—

TollOn a free road

National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency

Maintained byState Park, Forest, or Reservation 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 Springbrook SP over Stream built?

It was built in 1934, making it 91 years old in 2025.

What condition is Springbrook SP over Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does Springbrook SP over Stream carry?

No traffic count is recorded for this structure.

How long is Springbrook SP over Stream?

The structure is 40 ft (12.2 m) long with a longest span of 10 ft (3 m).

Who owns Springbrook SP over Stream?

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