LA0030 over STREAM


+30.39203, -91.17450
30°23'31" N, 91°10'28" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0030 over STREAM
Structure number:611704140103501
Location:4.0M NW of LA 42&LA 327-S
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:7.9 ft. [2.4 m]
Total length:53.2 ft. [16.2 m]
Roadway width between curbs:73.2 ft. [22.3 m]
Deck width edge-to-edge:77.4 ft. [23.6 m]
Skew angle:30°
Owner:State Highway Agency [01]
Year built:1961
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Concrete [1]
Main spans design:Culvert [19]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: November 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:12,300 [as of 2015]
Truck traffic:5% of total traffic
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Superior to present desirable criteria [9]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Culvert condition:Deterioration or initial disintegration, minor chloride contamination, cracking with some leaching, or spalls on concrete or masonry walls and slabs. Local minor scouring at curtain walls, wingwalls or pipes. Metal culverts have a smooth curvature, non-symmetrical shape, significant corrosion or moderate pitting. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:98.3

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
November 2016Fair6 out of 101230098.3
November 2014Fair6 out of 101210098.3
November 2012Fair6 out of 101260098.2
November 2010Good7 out of 101250098.2
October 2008Good7 out of 101290098.2
October 2006Fair6 out of 101150095.4
October 2004Fair6 out of 101130095.4
October 2002Fair6 out of 10990095.6
October 2000Fair6 out of 101069795.5
October 1998Fair6 out of 10646196.1
October 1996Fair6 out of 10665596.1
October 1994Fair6 out of 10678196.0
October 1992Fair6 out of 10761495.9
October 1990Fair6 out of 10761495.9

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Reinforced Concrete Culvertlinear ft.4804530270