US Bridges

Snowflake-Concho R over Seep Draw

Good

Apache County, Arizona · 8.7 MI W JCT SR 180A · Structure no. 09621

Built
1980
45 years old
Condition
Good
inspected May 2024
Type
Culvert
Steel
Length
32 ft
1 main span
Daily traffic
440
2020 count
Owner
County
County Highway Agency

About this bridge

Snowflake-Concho R over Seep Draw is a steel culvert carrying Snowflake-Concho R over Seep Draw in Apache County, Arizona. It was built in 1980, so it is 45 years old, younger than the Arizona average of 47.8 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 440 vehicles a day, roughly 1% of them trucks, projected to reach 450 by 2040. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 49.7 mi (80 km).

Location

Open in Google Maps
CarriesSnowflake-Concho R
CrossesSeep Draw
Location8.7 MI W JCT SR 180A
RouteCounty Highway 0
CountyApache County
StateArizona
Coordinates34.52973, -109.74919
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating60 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span32 ft (9.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic440 (2020)
Projected traffic450 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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 Snowflake-Concho R over Seep Draw built?

It was built in 1980, making it 45 years old in 2025.

What condition is Snowflake-Concho R over Seep Draw 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 2024.

How much traffic does Snowflake-Concho R over Seep Draw carry?

About 440 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Snowflake-Concho R over Seep Draw?

The structure is 32 ft (9.8 m) long with a longest span of 32 ft (9.8 m).

Who owns Snowflake-Concho R over Seep Draw?

It is owned by the County Highway Agency.