US Bridges

Iva Road over North Branch Bad River

Fair

Saginaw County, Michigan · 0.2 MI N of Colvin Road · Structure no. 000000000009318

Built
1989
36 years old
Condition
Fair
inspected October 2023
Type
Slab
Wood or Timber
Length
124 ft
4 main spans
Daily traffic
78
2006 count
Owner
County
County Highway Agency

About this bridge

Iva Road over North Branch Bad River is a wood or timber slab carrying Iva Road over North Branch Bad River in Saginaw County, Michigan. It was built in 1989, so it is 36 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 78 vehicles a day, roughly 5% of them trucks, projected to reach 82 by 2016. The structure is 124 ft (37.8 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesIva Road
CrossesNorth Branch Bad River
Location0.2 MI N of Colvin Road
RouteCounty Highway 0
Coordinates43.29869, -84.26908
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating57.1 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadHS 20 + Mod
Structure length124 ft (37.8 m)
Longest span32 ft (9.7 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78 (2006)
Projected traffic82 by 2016
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Iva Road over North Branch Bad River built?

It was built in 1989, making it 36 years old in 2025.

What condition is Iva Road over North Branch Bad River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does Iva Road over North Branch Bad River carry?

About 78 vehicles per day (2006 count), of which roughly 5% are trucks.

How long is Iva Road over North Branch Bad River?

The structure is 124 ft (37.8 m) long with a longest span of 32 ft (9.7 m) and a deck 30 ft wide.

Who owns Iva Road over North Branch Bad River?

It is owned by the County Highway Agency.