US Bridges

I-29 over Fulsom Lake Outlet

Good

Mills County, Iowa · 1.7 Mi. N of N Jct. US 34 · Structure no. 000000000700155

Built
2010
15 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
19,700
2022 count
Owner
State
State Highway Agency

About this bridge

I-29 over Fulsom Lake Outlet is a concrete continuous culvert carrying I-29 over Fulsom Lake Outlet in Mills County, Iowa. It was built in 2010, so it is 15 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.

It carries about 19,700 vehicles a day, roughly 25% of them trucks, projected to reach 19,700 by 2044. The structure is 22 ft (6.7 m) long.

CarriesI-29
CrossesFulsom Lake Outlet
Location1.7 Mi. N of N Jct. US 34
RouteInterstate 29
StateIowa
Coordinates41.06934, -95.82287
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 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 traffic19,700 (2022)
Projected traffic19,700 by 2044
Trucks25%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-29 over Fulsom Lake Outlet built?

It was built in 2010, making it 15 years old in 2025.

What condition is I-29 over Fulsom Lake Outlet 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 February 2024.

How much traffic does I-29 over Fulsom Lake Outlet carry?

About 19,700 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is I-29 over Fulsom Lake Outlet?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns I-29 over Fulsom Lake Outlet?

It is owned by the State Highway Agency.