IS 270 W over RT H

Map

Coordinates:
+38.76712, -90.18237
38°46'02" N, 90°10'57" 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:	13.1 ft. `[4.0 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:	26,661 `[as of 2017]`
Truck traffic:	18% of total traffic
Deck condition:	Good `[7 out of 9]`
Superstructure condition:	Good `[7 out of 9]`
Substructure condition:	Very Good `[8 out of 9]`
Structural appraisal:	Better than present minimum criteria `[7]`
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]`
Sufficiency rating:	94.7

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
July 2017	Good	Good	Good	Very Good	26661	94.7
July 2015	Good	Good	Very Good	Very Good	25526	94.8
September 2013	Good	Good	Very Good	Very Good	24615	96.9
September 2011	Good	Good	Very Good	Very Good	26228	96.8
September 2009	Good	Good	Very Good	Very Good	27642	96.7
September 2007	Good	Good	Good	Very Good	28309	96.7
August 2005	Good	Good	Good	Very Good	27204	96.7
August 2004	Good	Good	Good	Very Good	26463	79.5
August 2002	Good	Good	Good	Very Good	26676	96.8
August 2001	Good	Good	Good	Very Good	26729	96.7
July 2000	Fair	Excellent	Satisfactory	Very Good	24902	95.7
June 1998	Poor	Poor	Satisfactory	Fair	24902	60.5
November 1991	Poor	Poor	Poor	Very Good	27473	45.5

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

Element	Units	Quantity	1-Good	2-Fair	3-Poor	4-Serious
Superstructure
Steel Girder/Beam	linear ft.	1,266	1,250	16	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