US Bridges

45-Z003 over Bohanan Arroyo

Fair

San Juan County, New Mexico · 3.8 MI N of JCT Nm 516 · Structure no. 000000000003382

Built
1941
84 years old, rebuilt 1971
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
29 ft
1 main span
Daily traffic
1,384
2023 count
Owner
County
County Highway Agency

About this bridge

45-Z003 over Bohanan Arroyo is a steel stringer/multi-beam or girder carrying 45-Z003 over Bohanan Arroyo in San Juan County, New Mexico. It was built in 1941 and reconstructed in 1971, so it is 84 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 1,384 vehicles a day, roughly 5% of them trucks, projected to reach 1,882 by 2043. The structure is 29 ft (8.8 m) long and 32 ft wide.

Location

Open in Google Maps
Carries45-Z003
CrossesBohanan Arroyo
Location3.8 MI N of JCT Nm 516
RouteCounty Highway 45003
CountySan Juan County
StateNew Mexico
Coordinates36.86906, -107.97302
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 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 rating42.9 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span29 ft (8.8 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,384 (2023)
Projected traffic1,882 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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$300,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 45-Z003 over Bohanan Arroyo built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 1971.

What condition is 45-Z003 over Bohanan Arroyo 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 March 2024.

How much traffic does 45-Z003 over Bohanan Arroyo carry?

About 1,384 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is 45-Z003 over Bohanan Arroyo?

The structure is 29 ft (8.8 m) long with a longest span of 29 ft (8.8 m) and a deck 32 ft wide.

Who owns 45-Z003 over Bohanan Arroyo?

It is owned by the County Highway Agency.