FHWA NBI 2024 Inspection record Public-domain dataset

LAMB BL

Carrying LAMB BL over LAS VEGAS WASH

LAS VEGAS, Clark, Nevada

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Fair
47 t Inventory load rating Higher than 61% of rated Nevada bridges

LAMB BL in Clark, Nevada sits above 61% of rated Nevada bridges on inventory load rating (47 t), while its 1987 build year is earlier than 77% of Clark's recorded-year cohort (1,141 bridges).

LAMB BL in Clark, Nevada is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1987, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 5. The lowest applicable rating sets the federal condition category, so this Fair result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.

NBI record plate

Structure NV:B1875

LATE-CENTURY · CONCRETE · LONG-SPAN-RUN · TIED-CTRL · HEAVY-ADT · HEAVY-LOAD · CAT-FAIR

  • LATE-CENTURY 1980–1999
  • CONCRETE Concrete
  • LONG-SPAN-RUN 4 spans
  • TIED-CTRL Tied control
  • HEAVY-ADT Heavy ADT
  • HEAVY-LOAD Heavy load
  • CAT-FAIR Fair

Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.

Bridge Snapshot: LAMB BL

The LAMB BL bridge in Clark, Nevada carries LAMB BL over LAS VEGAS WASH. It was built in 1987, making it 39 years old today. The structure is built primarily of concrete continuous and spans 4 sections, stretching 43.9 meters (144 feet) end to end. Daily traffic averages 28,000 vehicles, placing it in the heavily-trafficked tier of Nevada bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 5/9, substructure at 7/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range.

How LAMB BL compares

▼ 0.2
Load rating vs Nevada average (47.2 t; 2,090 of 2,099 rated)
1,141
Bridges in Clark · 2 in Poor condition

Age against the county: built in 1987, earlier than 874 of Clark's 1,141 bridges with a recorded construction year (77%), against a county median build year of 1998. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.

LAMB BL 47.0 t
Nevada average (2,090 of 2,099 rated) 47.2 t

Live comparison across Nevada bridges with a recorded inventory load rating (2,090 of 2,099 rated).

LAMB BL vs every rated Nevada bridge

Inventory load rating (metric tons), FHWA NBI, this state

47 Top 39% higher than 61% of 2,090 bridges

rated Nevada bridges, bucketed by value

Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · August 2026

Condition Ratings

Deck
5/9
Fair (5–6)
Superstructure
5/9
Fair (5–6)
Substructure
7/9
Good (7–9)
Inventory Load Rating
47.0 t
NBI inventory level (metric tons)
Overall Condition
Fair

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.

Clark inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 1,141 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.

Structural Details

Year Built
1987
Material
Concrete Continuous
Number of Spans
4
Structure Length
43.9 m (144 ft)
Deck Width
31.1 m (102 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
28,000 vehicles/day
Structure Number
B1875

Condition Analysis

  • The deck (driving surface) rates fair at 5/9, minor deterioration that routine maintenance should address.
  • At 5/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.

How to read this record

This page shows what the last federal inspection recorded, not whether LAMB BL is safe to cross today. Here is how to use it.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
  • Compare LAMB BL against other structures in Clark and across Nevada. Nevada bridges
  • Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge

Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.

Frequently Asked Questions

What do the condition ratings mean for LAMB BL?

LAMB BL in Clark, Nevada has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is LAMB BL inspected?

LAMB BL's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 28,000 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. LAMB BL is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for LAMB BL?

LAMB BL has an NBI inventory load rating of 47.0 metric tons.

Who is responsible for maintaining LAMB BL?

LAMB BL is owned and maintained by City/Municipal Highway Agency.

How old is LAMB BL and does age affect safety?

LAMB BL was built in 1987, making it 39 years old.

Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

Share this inspection record

Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.

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Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.