US Bridges

17-Z000 over Silva Creek

Fair

Grant County, New Mexico · 0.25 MI W of JCT NM-90 · Structure no. 000000000007620

Built
1948
77 years old
Condition
Fair
inspected April 2023
Type
Culvert
Steel
Length
53 ft
2 main spans
Daily traffic
2,386
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

17-Z000 over Silva Creek is a steel culvert carrying 17-Z000 over Silva Creek in Grant County, New Mexico. It was built in 1948, so it is 77 years old, older 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 2,386 vehicles a day, roughly 5% of them trucks, projected to reach 3,244 by 2043. The structure is 53 ft (16.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries17-Z000
CrossesSilva Creek
Location0.25 MI W of JCT NM-90
RouteCity Street 17000
CountyGrant County
StateNew Mexico
Coordinates32.77789, -108.27834
Functional classUrban 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 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 rating79.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 15
Structure length53 ft (16.2 m)
Longest span25 ft (7.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,386 (2023)
Projected traffic3,244 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 17-Z000 over Silva Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is 17-Z000 over Silva Creek 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 April 2023.

How much traffic does 17-Z000 over Silva Creek carry?

About 2,386 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is 17-Z000 over Silva Creek?

The structure is 53 ft (16.2 m) long with a longest span of 25 ft (7.6 m).

Who owns 17-Z000 over Silva Creek?

It is owned by the City or Municipal Highway Agency.