Local over Sin CR

FairPosted for load

Montgomery County, Iowa · 073362602 · Structure no. 000000000256141

Built: 1974; 51 years old
Condition: Fair; inspected May 2023
Type: Slab; Concrete Continuous
Length: 102 ft; 3 main spans
Daily traffic: 20; 2021 count
Owner: County; County Highway Agency

About this bridge

Local over Sin CR is a concrete continuous slab carrying Local over Sin CR in Montgomery County, Iowa. It was built in 1974, so it is 51 years old, older than the Iowa average of 45.5 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. Its operating status is: posted for load restriction.

It carries about 20 vehicles a day, projected to reach 20 by 2043. The structure is 102 ft (31.1 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesLocal

CrossesSin CR

Location073362602

RouteCounty Highway 0

CountyMontgomery County

StateIowa

Coordinates41.09147, -94.96591

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.

Component	Rating	Meaning
Deck	6 Satisfactory	Structural elements show some minor deterioration.
Superstructure	6 Satisfactory	Structural elements show some minor deterioration.
Substructure	6 Satisfactory	Structural elements show some minor deterioration.
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionMay 2023

Inspection intervalevery 24 months

Operating statusPosted for load restriction

ScourUnknown foundation; not evaluated for scour

Structural evaluation6: Equal to present minimum criteria

Deck geometry6: Equal to present minimum criteria

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating38.6 US tons

Inventory rating23.1 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadH 15

Structure length102 ft (31.1 m)

Longest span39 ft (11.9 m)

Deck width26 ft (7.9 m)

Roadway width24 ft (7.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2021)

Projected traffic20 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 Sin CR built?

It was built in 1974, making it 51 years old in 2025.

What condition is Local over Sin CR 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 May 2023.

How much traffic does Local over Sin CR carry?

About 20 vehicles per day (2021 count).

How long is Local over Sin CR?

The structure is 102 ft (31.1 m) long with a longest span of 39 ft (11.9 m) and a deck 26 ft wide.

Who owns Local over Sin CR?

It is owned by the County Highway Agency.