US Bridges

59-115 over Unnamed Waterway

Fair

Union County, New Mexico · 5.3 MI SW of JCT NM-453 · Structure no. 000000000005510

Built
1933
92 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
50 ft
2 main spans
Daily traffic
57
2023 count
Owner
County
County Highway Agency

About this bridge

59-115 over Unnamed Waterway is a wood or timber stringer/multi-beam or girder carrying 59-115 over Unnamed Waterway in Union County, New Mexico. It was built in 1933, so it is 92 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 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 57 vehicles a day, projected to reach 77 by 2043. The structure is 50 ft (15.2 m) long and 24 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
Carries59-115
CrossesUnnamed Waterway
Location5.3 MI SW of JCT NM-453
RouteCounty Highway 59115
CountyUnion County
StateNew Mexico
Coordinates36.45205, -103.74424
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span24 ft (7.3 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic57 (2023)
Projected traffic77 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 59-115 over Unnamed Waterway built?

It was built in 1933, making it 92 years old in 2025.

What condition is 59-115 over Unnamed Waterway 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 2024.

How much traffic does 59-115 over Unnamed Waterway carry?

About 57 vehicles per day (2023 count).

How long is 59-115 over Unnamed Waterway?

The structure is 50 ft (15.2 m) long with a longest span of 24 ft (7.3 m) and a deck 24 ft wide.

Who owns 59-115 over Unnamed Waterway?

It is owned by the County Highway Agency.