US Bridges

IRR BIA Rt 201 over Navajo Wash

Good

Montezuma County, Colorado · S Towoac .4KM W HWY 160 · Structure no. 00000000000M611

Built
1995
30 years old
Condition
Good
inspected March 2023
Type
Culvert
Steel
Length
20 ft
1 main span
Daily traffic
400
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA Rt 201 over Navajo Wash is a steel culvert carrying IRR BIA Rt 201 over Navajo Wash in Montezuma County, Colorado. It was built in 1995, so it is 30 years old, younger than the Colorado average of 42.2 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 400 vehicles a day, roughly 10% of them trucks, projected to reach 468 by 2043. The structure is 20 ft (6.1 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIRR BIA Rt 201
CrossesNavajo Wash
LocationS Towoac .4KM W HWY 160
RouteFederal Lands Road 201
Coordinates37.18208, -108.70156
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating109.1 US tons
Inventory rating109.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckOther
Main spans1
Design loadUnknown
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width42 ft (12.7 m)
Roadway width42 ft (12.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2023)
Projected traffic468 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
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 IRR BIA Rt 201 over Navajo Wash built?

It was built in 1995, making it 30 years old in 2025.

What condition is IRR BIA Rt 201 over Navajo Wash 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 March 2023.

How much traffic does IRR BIA Rt 201 over Navajo Wash carry?

About 400 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is IRR BIA Rt 201 over Navajo Wash?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 42 ft wide.

Who owns IRR BIA Rt 201 over Navajo Wash?

It is owned by the Bureau of Indian Affairs.