NBI Ratings
This is the NBI Rating if the defects are Isolated and Moderate?
What is a NBI Rating of 6?
A primary steel member fully or partially in tension, and without load path redundancy, system redundancy, or internal redundancy, whose failure may cause a portion of or the entire bridge to collapse.
What is a Nonredundant Steel Tension Member (NSTM)?
Examples of these include Roadway, Posting Signs, Typical Superstructure, and Sideview.
What are Required Photos?
The condition warrants a structural review to determine the effect on strength or serviceability of the element or bridge; OR a structural review has been completed and the defects impact strength or serviceability of the element or bridge.
What is condition state 4?
This is the NBI Rating if the Superstructure has Some Inherent defects.
What is an NBI Rating of 8?
Erosion of streambed or bank material due to flowing water; often considered as being localized around piers and abutments of bridges.
What is Scour?
Flexural cracking on the bottom of a beam at midspan is the result of this type of moment.
What is Positive Moment?
In prestressed concrete; Efflorescence has heavy build‐up with rust staining.
What is condition state 3?
This is the NBI Rating if the Superstructure has Major Isolated defects.
What is an NBI Rating of 4?
The on-site, nationally certified bridge inspector in charge of an inspection team and responsible for planning, preparing, performing, and reporting on bridge field inspections.
What is a Team Leader?
This is the only truck type silhouette that has 2 wheels on a posting sign.
What is H-Truck? (H-Mod)
In reinforced concrete; Spall 1 in. or less deep or 6 in. or less in diameter. Patched area that is sound.
What is Condition State 2?
Bridge Height plus Water Depth equals Barrel Height plus this.
What is Scour?
This is the NBI Rating if the defects are Some and Minor?
What is an NBI Rating of 7?
A deposit on concrete, brick, stone, or mortar caused by crystallization of carbonates brought to the surface by moisture in the masonry or concrete.
What is Efflorescence?
All eyebars fall into this fatigue category.
What is category E?
You have a bearing with corrosion. Section loss is evident or pack rust is present but does not warrant structural review.
What is condition state 3?
This is the maximum spacing that guardrail posts can be for a proper bridge closure.
What is 5'?
This is the NBI Rating where the substructure has a Major Defect and the strength performance is Severely Compromised?
What is an NBI Rating of 2?
AASHTO is the abbreviation for this.
What is the American Association of State Highway and Transportation Officials.
This is the element code for 12” prestressed concrete deck panels.
What is 38- Reinforced Concrete Slab? There is not an option for prestressed concrete slab. Notes should state prestressed.
Steel protective coating has peeling on the surface layer only.
What is condition state 2?
What is 14' 6"?