Local over Mud Creek

Good

Benton County, Iowa · 084110802 · Structure no. 000000000364130

Built: 1999; 26 years old
Condition: Good; inspected April 2023
Type: Slab; Steel
Length: 40 ft; 1 main span
Daily traffic: 10; 2023 count
Owner: County; County Highway Agency

About this bridge

Local over Mud Creek is a steel slab carrying Local over Mud Creek in Benton County, Iowa. It was built in 1999, so it is 26 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 10 vehicles a day, projected to reach 10 by 2043. The structure is 40 ft (12.2 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesLocal

CrossesMud Creek

Location084110802

RouteCounty Highway 0

CountyBenton County

StateIowa

Coordinates42.10383, -92.16318

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.

Component	Rating	Meaning
Deck	8 Very Good	No problems noted.
Superstructure	7 Good	Some minor problems.
Substructure	7 Good	Some minor problems.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionApril 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation7: Better than present minimum criteria

Deck geometry7: Better than present minimum criteria

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating54.8 US tons

Inventory rating32.8 US tons

Structure

Structure typeSlab

MaterialSteel

DeckConcrete, cast-in-place

Main spans1

Design loadHS 20

Structure length40 ft (12.2 m)

Longest span36 ft (11 m)

Deck width31 ft (9.4 m)

Roadway width31 ft (9.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2023)

Projected traffic10 by 2043

Trucks0%

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 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 over Mud Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is Local 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 April 2023.

How much traffic does Local over Mud Creek carry?

About 10 vehicles per day (2023 count).

How long is Local over Mud Creek?

The structure is 40 ft (12.2 m) long with a longest span of 36 ft (11 m) and a deck 31 ft wide.

Who owns Local over Mud Creek?

It is owned by the County Highway Agency.