Local over Carters Lake

Good

Davis County, Iowa · 068143505 · Structure no. 000000000133931

Built: 2006; 19 years old
Condition: Good; inspected May 2023
Type: Slab; Concrete Continuous
Length: 116 ft; 3 main spans
Daily traffic: 80; 2022 count
Owner: County; County Highway Agency

About this bridge

Local over Carters Lake is a concrete continuous slab carrying Local over Carters Lake in Davis County, Iowa. It was built in 2006, so it is 19 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 80 vehicles a day, projected to reach 80 by 2043. The structure is 116 ft (35.4 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesLocal

CrossesCarters Lake

Location068143505

RouteCounty Highway 0

CountyDavis County

StateIowa

Coordinates40.64597, -92.43801

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	8 Very Good	No problems noted.
Substructure	8 Very Good	No problems noted.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionMay 2023

Inspection intervalevery 48 months

Operating statusOpen, no restriction

ScourFoundations stable; scour within limits of footing or piles

Structural evaluation8: Equal to present desirable criteria

Deck geometry6: Equal to present minimum criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating91.8 US tons

Inventory rating54.9 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20

Structure length116 ft (35.4 m)

Longest span44 ft (13.4 m)

Deck width27 ft (8.3 m)

Roadway width25 ft (7.5 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2022)

Projected traffic80 by 2043

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed6.2 mi (10 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 Carters Lake built?

It was built in 2006, making it 19 years old in 2025.

What condition is Local over Carters Lake 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 May 2023.

How much traffic does Local over Carters Lake carry?

About 80 vehicles per day (2022 count).

How long is Local over Carters Lake?

The structure is 116 ft (35.4 m) long with a longest span of 44 ft (13.4 m) and a deck 27 ft wide.

Who owns Local over Carters Lake?

It is owned by the County Highway Agency.