US Bridges

SB I 29 over IA376 Singing Hills Blvd

Good

Woodbury County, Iowa · At Jct. Ia 376 · Structure no. 000000000053741

Built
2012
13 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
259 ft
4 main spans
Daily traffic
12,350
2022 count
Owner
State
State Highway Agency

About this bridge

SB I 29 over IA376 Singing Hills Blvd is a prestressed concrete stringer/multi-beam or girder carrying SB I 29 over IA376 Singing Hills Blvd in Woodbury County, Iowa. It was built in 2012, so it is 13 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 12,350 vehicles a day, roughly 19% of them trucks, projected to reach 12,350 by 2044. The structure is 259 ft (78.9 m) long and 78 ft wide.

CarriesSB I 29
CrossesIA376 Singing Hills Blvd
LocationAt Jct. Ia 376
RouteInterstate 29
StateIowa
Coordinates42.43458, -96.3753
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length259 ft (78.9 m)
Longest span87 ft (26.5 m)
Deck width78 ft (23.8 m)
Roadway width73 ft (22.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,350 (2022)
Projected traffic12,350 by 2044
Trucks19%
Lanes on structure4
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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 SB I 29 over IA376 Singing Hills Blvd built?

It was built in 2012, making it 13 years old in 2025.

What condition is SB I 29 over IA376 Singing Hills Blvd 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 November 2024.

How much traffic does SB I 29 over IA376 Singing Hills Blvd carry?

About 12,350 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is SB I 29 over IA376 Singing Hills Blvd?

The structure is 259 ft (78.9 m) long with a longest span of 87 ft (26.5 m) and a deck 78 ft wide.

Who owns SB I 29 over IA376 Singing Hills Blvd?

It is owned by the State Highway Agency.