US Bridges

I-10 EB over Olga RD

Fair

Cochise County, Arizona · 16.6 MI E JCT US 191 · Structure no. 00692

Built
1962
63 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete Continuous
Length
91 ft
3 main spans
Daily traffic
8,353
2022 count
Owner
State
State Highway Agency

About this bridge

I-10 EB over Olga RD is a concrete continuous slab carrying I-10 EB over Olga RD in Cochise County, Arizona. It was built in 1962, so it is 63 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 8,353 vehicles a day, roughly 44% of them trucks, projected to reach 8,363 by 2042. The structure is 91 ft (27.7 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-10 EB
CrossesOlga RD
Location16.6 MI E JCT US 191
RouteInterstate 10
CountyCochise County
StateArizona
Coordinates32.29694, -109.35301
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length91 ft (27.7 m)
Longest span34 ft (10.4 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,353 (2022)
Projected traffic8,363 by 2042
Trucks44%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-10 EB over Olga RD built?

It was built in 1962, making it 63 years old in 2025.

What condition is I-10 EB over Olga RD 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 September 2023.

How much traffic does I-10 EB over Olga RD carry?

About 8,353 vehicles per day (2022 count), of which roughly 44% are trucks.

How long is I-10 EB over Olga RD?

The structure is 91 ft (27.7 m) long with a longest span of 34 ft (10.4 m) and a deck 43 ft wide.

Who owns I-10 EB over Olga RD?

It is owned by the State Highway Agency.