US Bridges

US 218 SB over Overflow Ave Saints Lake

Good

Bremer County, Iowa · 0.7 Mi. S of Jct. Ia. #3 · Structure no. 000000000601732

Built
1996
29 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
184 ft
3 main spans
Daily traffic
4,950
2023 count
Owner
State
State Highway Agency

About this bridge

US 218 SB over Overflow Ave Saints Lake is a prestressed concrete stringer/multi-beam or girder carrying US 218 SB over Overflow Ave Saints Lake in Bremer County, Iowa. It was built in 1996, so it is 29 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 4,950 vehicles a day, roughly 22% of them trucks, projected to reach 4,950 by 2043. The structure is 184 ft (56.1 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 218 SB
CrossesOverflow Ave Saints Lake
Location0.7 Mi. S of Jct. Ia. #3
RouteU.S. Route 218
StateIowa
Coordinates42.70548, -92.53423
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.6 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length184 ft (56.1 m)
Longest span69 ft (21 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,950 (2023)
Projected traffic4,950 by 2043
Trucks22%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 218 SB over Overflow Ave Saints Lake built?

It was built in 1996, making it 29 years old in 2025.

What condition is US 218 SB over Overflow Ave Saints Lake 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 March 2023.

How much traffic does US 218 SB over Overflow Ave Saints Lake carry?

About 4,950 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is US 218 SB over Overflow Ave Saints Lake?

The structure is 184 ft (56.1 m) long with a longest span of 69 ft (21 m) and a deck 43 ft wide.

Who owns US 218 SB over Overflow Ave Saints Lake?

It is owned by the State Highway Agency.