Page 55 - Bridge and Highway Structure Rehabilitation and Repair

30 SECTION 1 ADMINISTRATIVE ISSUES

Stage 1: Lane closure, demolition, new construction, signing and striping.

Stage 2: Divert trafi c from existing lanes to new construction.
Demolish and reconstruct remaining bridge. Signing and striping.
Remove temporary barriers and divert traffi c.
Figure 1.12 Half-width two-staged contruction which is the preferred alternative to a detour.

1.9.3 Construction Staging Plans

The plans shall include cross-sections of the bridge for each stage of construction.
1. Fewer stages will provide less time for completion. Time required for the completion of
concrete work for each stage is nearly that of a bridge. Two main stages are preferred over
three or four, although there may be sub-stages.
2. An off-peak traffi c hours construction schedule and/or incentive/disincentive clauses may
be prescribed for bridges carrying extremely high traffi c volumes.
3. During installation of countermeasures, small cranes or pile driving equipment may be
parked on a lane or shoulders. A lane closure would then be required. Coordination with
the state traffic operations and local transportation officials will be necessary.

4. Reducing the period of construction through accelerated bridge construction (ABC).
1.9.4 Involvement of Stakeholders and Public Outreach

Rehabilitation issues require the blessings of all stakeholders. Their cooperation is required in
order to minimize adverse impacts on community. The following aspects may be considered:
1. Define problem and assess community needs.

2. Concept development: Ranges of possible “solutions.”
3. Understanding the community: Public relations outreach and communication through town
hall meetings.
4. Develop general solutions: Consensus on vision and process.
5. Develop traffi c scheme: Application of MUTC and Work Zone Traffic Control Guidelines

is required.
6. Temporary measures to keep bridge open:
• Structure is in advance stage of deterioration; partial lane closure may be adopted by
posting lower load limits.
• Continue using on a temporary basis if there is high traffic volume and/or no money is

immediately available for full replacement.