IS 55 S over CST GASCONADE ST

Map

Coordinates:
+38.58047, -90.22595
38°34'50" N, 90°13'33" W

Source: National Bridge Inventory. Information not verified; use at your own risk.

Name:	IS 55 S over CST GASCONADE ST
Structure number:	878
Location:	S 3 T 44 N R 7 E
Purpose:	Carries highway over highway
Route classification:	Principal Arterial - Interstate (Urban) `[11]`
Length of largest span:	69.9 ft. `[21.3 m]`
Total length:	161.1 ft. `[49.1 m]`
Roadway width between curbs:	54.1 ft. `[16.5 m]`
Deck width edge-to-edge:	56.8 ft. `[17.3 m]`
Vertical clearance below bridge:	13.1 ft. `[4.0 m]`
Skew angle:	44°
Owner:	State Highway Agency `[01]`
Year built:	1965
Year reconstructed:	1985
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Design load:	MS 18+Mod / HS 20+Mod `[6]`
Number of main spans:	3
Main spans material:	Concrete continuous `[2]`
Main spans design:	Slab `[01]`
Deck type:	Concrete Cast-in-Place `[1]`
Wearing surface:	Bituminous `[6]`

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	52,726 `[as of 2016]`
Truck traffic:	12% of total traffic
Deck condition:	Satisfactory `[6 out of 9]`
Superstructure condition:	Satisfactory `[6 out of 9]`
Substructure condition:	Satisfactory `[6 out of 9]`
Structural appraisal:	Equal to present minimum criteria `[6]`
Deck geometry appraisal:	Basically intolerable requiring high priority of replacement `[2]`
Underclearances appraisal:	Equal to present minimum criteria `[6]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Scour condition:	Bridge not over waterway. `[N]`
Sufficiency rating:	75.8
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. `[35]`
Estimated cost of work:	$1,151,000

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
August 2017	Fair	Satisfactory	Satisfactory	Satisfactory	52726	75.8
August 2015	Fair	Satisfactory	Satisfactory	Satisfactory	51340	75.9
August 2013	Fair	Satisfactory	Satisfactory	Satisfactory	56754	75.6
August 2011	Fair	Satisfactory	Satisfactory	Satisfactory	50598	73.6
September 2009	Fair	Satisfactory	Satisfactory	Satisfactory	51625	73.7
August 2007	Fair	Satisfactory	Satisfactory	Satisfactory	55636	73.5
August 2005	Fair	Satisfactory	Satisfactory	Satisfactory	49983	73.9
July 2003	Fair	Satisfactory	Satisfactory	Satisfactory	49536	73.9
June 2001	Fair	Good	Good	Satisfactory	48614	72.9

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.

Element	Units	Quantity	1-Good	2-Fair	3-Poor	4-Serious
Substructure
Reinforced Concrete Column	each	8	4	4	0	0
Reinforced Concrete Abutment	linear ft.	198	172	11	15	0
Bridge Rail
Reinforced Concrete Bridge Rail	linear ft.	322	0	304	10	8
Deck
Reinforced Concrete Slab	sq. ft.	9,161	1,630	7,056	475	0
Wearing Surfaces	sq. ft.	8,245	0	8,245	0	0