US Bridges

Askel RD P109 over Otter River

Good

Houghton County, Michigan · 4 MI NE of Elo · Structure no. 000000000013432

Built
1983
42 years old
Condition
Good
inspected October 2023
Type
Culvert
Steel
Length
70 ft
6 main spans
Daily traffic
170
1993 count
Owner
County
County Highway Agency

About this bridge

Askel RD P109 over Otter River is a steel culvert carrying Askel RD P109 over Otter River in Houghton County, Michigan. It was built in 1983, so it is 42 years old, younger than the Michigan average of 48.3 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 170 vehicles a day, projected to reach 190 by 2013. The structure is 70 ft (21.3 m) long. If it were closed, the detour would be 29.8 mi (48 km).

CarriesAskel RD P109
CrossesOtter River
Location4 MI NE of Elo
RouteCounty Highway 3140
Coordinates46.89344, -88.58886
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans6
Design loadHS 20 + Mod
Structure length70 ft (21.3 m)
Longest span9 ft (2.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic170 (1993)
Projected traffic190 by 2013
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Askel RD P109 over Otter River built?

It was built in 1983, making it 42 years old in 2025.

What condition is Askel RD P109 over Otter River 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 October 2023.

How much traffic does Askel RD P109 over Otter River carry?

About 170 vehicles per day (1993 count).

How long is Askel RD P109 over Otter River?

The structure is 70 ft (21.3 m) long with a longest span of 9 ft (2.6 m).

Who owns Askel RD P109 over Otter River?

It is owned by the County Highway Agency.