IS 270 W over RT H

Map

Coordinates:
+38.76707, -90.18231
38°46'01" N, 90°10'56" W

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

Name:	IS 270 W over RT H
Structure number:	824
Old structure number:	A10251 3 `(from 1992 edition)`
Location:	S 114 T 47 N R 7 E
Purpose:	Carries highway over highway
Route classification:	Principal Arterial - Interstate (Urban) `[11]`
Length of largest span:	63.0 ft. `[19.2 m]`
Total length:	215.9 ft. `[65.8 m]`
Roadway width between curbs:	44.3 ft. `[13.5 m]`
Deck width edge-to-edge:	46.9 ft. `[14.3 m]`
Vertical clearance below bridge:	14.8 ft. `[4.5 m]`
Skew angle:	9°
Owner:	State Highway Agency `[01]`
Year built:	1962
Year reconstructed:	1999
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:	4
Main spans material:	Steel continuous `[4]`
Main spans design:	Stringer/Multi-beam or girder `[02]`
Deck type:	Concrete Cast-in-Place `[1]`
Wearing surface:	Monolithic Concrete (concurrently placed with structural deck) `[1]`

Good/Fair/Poor Condition:	Good
Status:	Open, no restriction `[A]`
Average daily traffic:	25,526 `[as of 2015]`
Truck traffic:	18% of total traffic
Deck condition:	Good `[7 out of 9]`
Superstructure condition:	Very Good `[8 out of 9]`
Substructure condition:	Very Good `[8 out of 9]`
Structural appraisal:	Equal to present desirable criteria `[8]`
Deck geometry appraisal:	Superior to present desirable criteria `[9]`
Underclearances appraisal:	Meets minimum tolerable limits to be left in place as is `[4]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Scour condition:	Bridge not over waterway. `[N]`
Operating rating:	65.3 tons `[59.4 metric tons]`
Inventory rating:	37.6 tons `[34.2 metric tons]`
Sufficiency rating:	94.8

Date	Suff. Rating	Condition	Deck	Superstructure	Substructure	SD/FO	ADT
July 2015	94.8	Good	Good	Very Good	Very Good	-	25526
September 2013	96.9	Good	Good	Very Good	Very Good	-	24615
September 2011	96.8	Good	Good	Very Good	Very Good	-	26228
September 2009	96.7	Good	Good	Very Good	Very Good	-	27642
September 2007	96.7	Good	Good	Good	Very Good	-	28309
August 2005	96.7	Good	Good	Good	Very Good	-	27204
August 2004	79.5	Good	Good	Good	Very Good	-	26463
August 2002	96.8	Good	Good	Good	Very Good	-	26676
August 2001	96.7	Good	Good	Good	Very Good	-	26729
July 2000	95.7	Fair	Excellent	Satisfactory	Very Good	-	24902
June 1998	60.5	Poor	Poor	Satisfactory	Fair	SD	24902
November 1991	45.5	Poor	Poor	Poor	Very Good	SD	27473

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.

Element	Units	Quantity	1. Good	2. Fair	3. Poor	4. Serious
Superstructure
Steel Girder/Beam	linear ft.	1,266	1,264	2	0	0
Steel Protective Coating	sq. ft.	11,301	3,729	7,572	0	0
Deck
Reinforced Concrete Deck	sq. ft.	10,154	8,122	2,032	0	0
Substructure
Reinforced Concrete Column	each	9	9	0	0	0
Reinforced Concrete Abutment	linear ft.	129	107	22	0	0
Reinforced Concrete Pier Cap	linear ft.	138	130	8	0	0
Bearings
Elastomeric Bearing	each	18	18	0	0	0
Enclosed/Concealed Bearing	each	12	12	0	0	0
Bridge Rail
Reinforced Concrete Bridge Rail	linear ft.	465	0	465	0	0