+42.10833, -93.00000
42°06'30" N, 93°00'00" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IA 330 over SMALL STREAM
Structure number:000000000243480
Location:0.7 MILES N OF JCT SR E35
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:12.1 ft. [3.7 m]
Total length:40.0 ft. [12.2 m]
Skew angle:15°
Owner:State Highway Agency [01]
Year built:1970
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Number of main spans:3
Main spans material:Concrete continuous [2]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: June 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:2,430 [as of 2015]
Truck traffic:14% of total traffic
Structural appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Culvert condition:Shrinkage cracks, light scaling and insignificant spalling which does not expose reinforcing steel. Insignificant damage caused by drift with no misalignment and not requiring corrective action. Some minor scouring has occured near curtain walls, wingwalls or pipes. Metal culverts have a smooth symmetrical curvature with superficial corrosion and no pitting. [7]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:48.4 tons [44.0 metric tons]
Inventory rating:35.5 tons [32.3 metric tons]
Sufficiency rating:96.7

Previous Inspections

DateSuff. RatingConditionCulvert ConditionSD/FOADT
June 201696.7Good7 out of 10-2430
June 201496.7Good7 out of 10-2290
June 201296.7Good7 out of 10-2130
June 201099.6Good7 out of 10-2090
June 200896.6Good7 out of 10-2470
June 200696.7Good7 out of 10-2500
March 200596.6Good7 out of 10-2940
July 200296.6Good7 out of 10-2780
November 200096.5Good7 out of 10-3220
December 199899.6Good8 out of 10-3190
December 199699.6Good8 out of 10-2520
December 1994100.0Good8 out of 10-2330
December 1992100.0Good8 out of 10-1190
March 1990100.0Good8 out of 10-1150

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Reinforced Concrete Culvertlinear ft.199199000