US Bridges

17-Z011 over Gila River

Fair

Grant County, New Mexico · 21.7 M N JCT US-70/NM-464 · Structure no. 000000000008677

Built
1986
39 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
212 ft
3 main spans
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

17-Z011 over Gila River is a steel continuous stringer/multi-beam or girder carrying 17-Z011 over Gila River in Grant County, New Mexico. It was built in 1986, so it is 39 years old, younger than the New Mexico average of 51.5 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 30 vehicles a day, roughly 10% of them trucks, projected to reach 40 by 2043. The structure is 212 ft (64.5 m) long and 25 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
Carries17-Z011
CrossesGila River
Location21.7 M N JCT US-70/NM-464
RouteState Highway 17011
CountyGrant County
StateNew Mexico
Coordinates32.69383, -108.73255
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length212 ft (64.5 m)
Longest span80 ft (24.4 m)
Deck width25 ft (7.6 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic40 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$318,000 (2030 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 17-Z011 over Gila River built?

It was built in 1986, making it 39 years old in 2025.

What condition is 17-Z011 over Gila River 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 17-Z011 over Gila River carry?

About 30 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 17-Z011 over Gila River?

The structure is 212 ft (64.5 m) long with a longest span of 80 ft (24.4 m) and a deck 25 ft wide.

Who owns 17-Z011 over Gila River?

It is owned by the County Highway Agency.