US Bridges

Helmet Peak RD over I 19

Fair

Pima County, Arizona · 3.6 MI N of JCT B 19 · Structure no. 01356

Built
1969
56 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
252 ft
4 main spans
Daily traffic
36,001
2021 count
Owner
State
State Highway Agency

About this bridge

Helmet Peak RD over I 19 is a concrete continuous box beam or girders - single or spread carrying Helmet Peak RD over I 19 in Pima County, Arizona. It was built in 1969, so it is 56 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 36,001 vehicles a day, roughly 19% of them trucks, projected to reach 36,011 by 2041. The structure is 252 ft (76.8 m) long and 58 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesHelmet Peak RD
CrossesI 19
Location3.6 MI N of JCT B 19
RouteCounty Highway 0
StateArizona
Coordinates31.9579, -110.9881
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating43 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length252 ft (76.8 m)
Longest span82 ft (25 m)
Deck width58 ft (17.6 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,001 (2021)
Projected traffic36,011 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 Helmet Peak RD over I 19 built?

It was built in 1969, making it 56 years old in 2025.

What condition is Helmet Peak RD over I 19 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 May 2023.

How much traffic does Helmet Peak RD over I 19 carry?

About 36,001 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is Helmet Peak RD over I 19?

The structure is 252 ft (76.8 m) long with a longest span of 82 ft (25 m) and a deck 58 ft wide.

Who owns Helmet Peak RD over I 19?

It is owned by the State Highway Agency.