US Bridges

I 10; EB & WB over Big Draw

Fair

Cochise County, Arizona · 9.7 MI W JCT US 191 · Structure no. 05581

Built
1941
84 years old, rebuilt 2010
Condition
Fair
inspected February 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
14,112
2023 count
Owner
State
State Highway Agency

About this bridge

I 10; EB & WB over Big Draw is a concrete continuous culvert carrying I 10; EB & WB over Big Draw in Cochise County, Arizona. It was built in 1941 and reconstructed in 2010, so it is 84 years old, older than the Arizona average of 47.8 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.

It carries about 14,112 vehicles a day, roughly 39% of them trucks, projected to reach 14,222 by 2042. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesI 10; EB & WB
CrossesBig Draw
Location9.7 MI W JCT US 191
RouteInterstate 10
CountyCochise County
StateArizona
Coordinates32.07594, -110.06102
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating80 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,112 (2023)
Projected traffic14,222 by 2042
Trucks39%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I 10; EB & WB over Big Draw built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 2010.

What condition is I 10; EB & WB over Big Draw 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 February 2024.

How much traffic does I 10; EB & WB over Big Draw carry?

About 14,112 vehicles per day (2023 count), of which roughly 39% are trucks.

How long is I 10; EB & WB over Big Draw?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns I 10; EB & WB over Big Draw?

It is owned by the State Highway Agency.