Table 7 – Responded agencies’ current practice for determining crack chasing or flood sealing

Arizona DOT

Based on the engineer’s judgment, crack width, and volume of cracks

[7]

Indiana DOT

Crack chasing is done as part of bridge deck sealing and bridge deck epoxy injection programs. When there’s a large number of cracks, they place a thin deck overlay

[23]

Michigan DOT

Refer to Section of “Thin Epoxy Overlay and Healer Sealer Treatments on Bridge Decks”

[97]

Minnesota DOT

In-house Crews: Crack chase with low density of cracks (spacing > 0.92 m); flood seal with high density of cracks (spacing < 0.92 m)

Contract Crews: Refer to MnDOT Standard Specification Sect. 2433.3.C.1 Bridge Deck Crack Sealing Process

[98]

Mississippi DOT

Usually flood seal

N.A.

New Hampshire DOT

Use visual observations and engineering judgement based on number and frequency of cracks

N.A.

New York

DOT

Depends on size and frequency of cracks

N.A.

New York City DOT

Case by case basis by the design engineer

N.A.

North Dakota DOT

Typically try to crack chase before the level of cracking gets to the flood seal requirements

N.A.

Seattle DOT

Reference qualified products used by state agency and from various subject matter experts with the industry

N.A.

South Dakota DOT

Consider flood seal for bridge decks with pattern cracking

N.A.

Texas DOT

Evaluates on a case-by-case basis

[89]

Washington DOT

Methods determined by contractor based on the extent of cracking

N.A.