US Bridges

Local over North Timber Creek

Good

Marshall County, Iowa · 083192304 · Structure no. 000000000242871

Built
1998
27 years old
Condition
Good
inspected November 2022
Type
Slab
Concrete Continuous
Length
89 ft
3 main spans
Daily traffic
21
2022 count
Owner
County
County Highway Agency

About this bridge

Local over North Timber Creek is a concrete continuous slab carrying Local over North Timber Creek in Marshall County, Iowa. It was built in 1998, so it is 27 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 21 vehicles a day, projected to reach 21 by 2042. The structure is 89 ft (27.1 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesLocal
CrossesNorth Timber Creek
Location083192304
RouteCounty Highway 0
StateIowa
Coordinates41.98303, -93.03349
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 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 rating83.3 US tons
Inventory rating49.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length89 ft (27.1 m)
Longest span34 ft (10.4 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21 (2022)
Projected traffic21 by 2042
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 North Timber Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Local over North Timber 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 November 2022.

How much traffic does Local over North Timber Creek carry?

About 21 vehicles per day (2022 count).

How long is Local over North Timber Creek?

The structure is 89 ft (27.1 m) long with a longest span of 34 ft (10.4 m) and a deck 26 ft wide.

Who owns Local over North Timber Creek?

It is owned by the County Highway Agency.