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I 15 over DRY FORK MARIAS RIVER

Pondera County, Montana

Map

Coordinates:
+48.21717, -111.93346
48°13'02" N, 111°56'00" W

Facts

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

Name:	I 15 over DRY FORK MARIAS RIVER
Structure number:	I00015342+00252
Location:	2M N CONRAD
Purpose:	Carries highway over waterway
Route classification:	Principal Arterial - Interstate (Rural) `[01]`
Length of largest span:	71.5 ft. `[21.8 m]`
Total length:	247.1 ft. `[75.3 m]`
Roadway width between curbs:	41.3 ft. `[12.6 m]`
Deck width edge-to-edge:	44.3 ft. `[13.5 m]`
Owner:	State Highway Agency `[01]`
Year built:	1972
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:	4
Main spans material:	Prestressed concrete `[5]`
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]`

Latest Available Inspection: September 2017

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	1,799 `[as of 2016]`
Truck traffic:	22% of total traffic
Deck condition:	Satisfactory `[6 out of 9]`
Superstructure condition:	Good `[7 out of 9]`
Substructure condition:	Good `[7 out of 9]`
Structural appraisal:	Better than present minimum criteria `[7]`
Deck geometry 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]`
Scour condition:	Bridge foundations determined to be stable for assessed or calculated scour condition. `[5]`
Sufficiency rating:	97.9

Previous Inspections

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
September 2017	Fair	Satisfactory	Good	Good	1799	97.9
September 2013	Fair	Satisfactory	Good	Good	3430	97.8
September 2009	Fair	Satisfactory	Good	Good	3810	97.8
September 2005	Good	Good	Very Good	Good	3950	97.8
September 2001	Good	Good	Very Good	Good	3690	96.8
April 1999	Good	Very Good	Very Good	Very Good	3380	97.8
December 1996	Good	Very Good	Very Good	Very Good	3050	97.9
October 1992	Good	Very Good	Very Good	Very Good	2840	97.8
January 1991	Good	Very Good	Very Good	Very Good	2920	97.8

Element Data

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

Element	Units	Quantity	1-Good	2-Fair	3-Poor	4-Serious
Superstructure
Prestressed Concrete Girder/Beam	linear ft.	1,519	1,517	2	0	0
Deck
Reinforced Concrete Deck	sq. ft.	10,904	10,904	0	0	0
Concrete Protective Coating	sq. ft.	10,904	10,904	0	0	0
Substructure
Reinforced Concrete Column	each	9	9	0	0	0
Reinforced Concrete Abutment	linear ft.	105	87	18	0	0
Reinforced Concrete Pier Cap	linear ft.	131	131	0	0	0
Bearings
Fixed Bearing	each	38	26	12	0	0
Steel Protective Coating	sq. ft.	38	29	3	3	3
Bridge Rail
Steel or Aluminum Bridge Rail	linear ft.	495	371	124	0	0
Steel Protective Coating	sq. ft.	825	497	164	82	82

© Copyright 2012-20, James Baughn
Disclaimer: All data is taken from the National Bridge Inventory and has not been verified.
This page's URL is http://bridgereports.com/1314912