US Bridges

Local Road over Branch Mosquito Creek

Good

Tama County, Iowa · 086160101 · Structure no. 000000000320671

Built
2000
25 years old
Condition
Good
inspected September 2022
Type
Slab
Steel
Length
40 ft
1 main span
Daily traffic
33
2022 count
Owner
County
County Highway Agency

About this bridge

Local Road over Branch Mosquito Creek is a steel slab carrying Local Road over Branch Mosquito Creek in Tama County, Iowa. It was built in 2000, so it is 25 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 33 vehicles a day, projected to reach 33 by 2043. The structure is 40 ft (12.2 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLocal Road
CrossesBranch Mosquito Creek
Location086160101
RouteCounty Highway 0
CountyTama County
StateIowa
Coordinates42.29689, -92.65579
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating66 US tons
Inventory rating39.6 US tons

Structure

Structure typeSlab
MaterialSteel
DeckOpen grating
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width25 ft (7.6 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33 (2022)
Projected traffic33 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local Road over Branch Mosquito Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Local Road over Branch Mosquito Creek 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 September 2022.

How much traffic does Local Road over Branch Mosquito Creek carry?

About 33 vehicles per day (2022 count).

How long is Local Road over Branch Mosquito Creek?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 25 ft wide.

Who owns Local Road over Branch Mosquito Creek?

It is owned by the County Highway Agency.