US Bridges

Franconia Road over I 40

Fair

Mohave County, Arizona · 3.5 MI E JCT SR 95 · Structure no. 01590

Built
1972
53 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
298 ft
3 main spans
Daily traffic
42
2022 count
Owner
State
State Highway Agency

About this bridge

Franconia Road over I 40 is a steel continuous stringer/multi-beam or girder carrying Franconia Road over I 40 in Mohave County, Arizona. It was built in 1972, so it is 53 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 5 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 42 vehicles a day, roughly 2% of them trucks, projected to reach 52 by 2042. The structure is 298 ft (90.8 m) long and 29 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesFranconia Road
CrossesI 40
Location3.5 MI E JCT SR 95
RouteCounty Highway 0
StateArizona
Coordinates34.734, -114.258
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating37 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length298 ft (90.8 m)
Longest span98 ft (29.9 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42 (2022)
Projected traffic52 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

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 Franconia Road over I 40 built?

It was built in 1972, making it 53 years old in 2025.

What condition is Franconia Road over I 40 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 August 2024.

How much traffic does Franconia Road over I 40 carry?

About 42 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Franconia Road over I 40?

The structure is 298 ft (90.8 m) long with a longest span of 98 ft (29.9 m) and a deck 29 ft wide.

Who owns Franconia Road over I 40?

It is owned by the State Highway Agency.