US Bridges

9th ST over Mud Creek

Good

Tama County, Iowa · 083152606 · Structure no. 000000000318171

Built
2014
11 years old
Condition
Good
inspected September 2020
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
57
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

9th ST over Mud Creek is a concrete continuous culvert carrying 9th ST over Mud Creek in Tama County, Iowa. It was built in 2014, so it is 11 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 57 vehicles a day, projected to reach 57 by 2043. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Carries9th ST
CrossesMud Creek
Location083152606
RouteCity Street 0
StateIowa
Coordinates41.9673, -92.56246
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
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2020
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50.4 US tons
Inventory rating38.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic57 (2022)
Projected traffic57 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal 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 9th ST over Mud Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is 9th ST over Mud 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 2020.

How much traffic does 9th ST over Mud Creek carry?

About 57 vehicles per day (2022 count).

How long is 9th ST over Mud Creek?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns 9th ST over Mud Creek?

It is owned by the City or Municipal Highway Agency and maintained by the County Highway Agency.