US Bridges

Ia 116 SB over US 218

Good

Bremer County, Iowa · 4.2 Mi. S of Jct. Ia 3 · Structure no. 000000000601950

Built
1997
28 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
288 ft
1 main span
Daily traffic
2,900
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 116 SB over US 218 is a prestressed concrete stringer/multi-beam or girder carrying Ia 116 SB over US 218 in Bremer County, Iowa. It was built in 1997, so it is 28 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 2,900 vehicles a day, roughly 2% of them trucks, projected to reach 2,900 by 2044. The structure is 288 ft (87.8 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIa 116 SB
CrossesUS 218
Location4.2 Mi. S of Jct. Ia 3
RouteState Highway 116
StateIowa
Coordinates42.69242, -92.47715
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.5 US tons
Inventory rating59.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length288 ft (87.8 m)
Longest span101 ft (30.8 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2022)
Projected traffic2,900 by 2044
Trucks2%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Ia 116 SB over US 218 built?

It was built in 1997, making it 28 years old in 2025.

What condition is Ia 116 SB over US 218 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 December 2024.

How much traffic does Ia 116 SB over US 218 carry?

About 2,900 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Ia 116 SB over US 218?

The structure is 288 ft (87.8 m) long with a longest span of 101 ft (30.8 m) and a deck 28 ft wide.

Who owns Ia 116 SB over US 218?

It is owned by the State Highway Agency.