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US 18 over Niobrara River

Niobrara County, Wyoming

Map

Coordinates:
+42.76696, -104.45239
42°46'01" N, 104°27'09" W

Facts

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

Name:	US 18 over Niobrara River
Structure number:	FDE
Location:	Lusk
Purpose:	Carries highway and pedestrian walkway over waterway
Route classification:	Principal Arterial - Other (Rural) `[02]`
Length of largest span:	102.7 ft. `[31.3 m]`
Total length:	108.9 ft. `[33.2 m]`
Roadway width between curbs:	49.9 ft. `[15.2 m]`
Deck width edge-to-edge:	65.0 ft. `[19.8 m]`
Skew angle:	45°
Owner:	State Highway Agency `[01]`
Year built:	1988
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Design load:	MS 18 / HS 20 `[5]`
Main span material:	Steel `[3]`
Main span design:	Stringer/Multi-beam or girder `[02]`
Deck type:	Concrete Cast-in-Place `[1]`
Wearing surface:	Latex Concrete or similar additive `[3]`

Latest Available Inspection: March 2018

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	4,206 `[as of 2017]`
Truck traffic:	14% of total traffic
Deck condition:	Good `[7 out of 9]`
Superstructure condition:	Good `[7 out of 9]`
Substructure condition:	Satisfactory `[6 out of 9]`
Structural appraisal:	Equal to present minimum criteria `[6]`
Deck geometry appraisal:	Equal to present minimum criteria `[6]`
Water adequacy appraisal:	Equal to present desirable criteria `[8]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Channel protection:	Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. `[8]`
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. `[8]`
Sufficiency rating:	90.7

Previous Inspections

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
March 2018	Fair	Good	Good	Satisfactory	4206	90.7
March 2016	Good	Good	Good	Good	3095	92.6
March 2014	Good	Good	Good	Good	4505	90.2
January 2012	Good	Good	Good	Good	4452	90.3
March 2010	Good	Good	Good	Good	4519	80.0
March 2008	Good	Good	Good	Good	4470	80.0
February 2006	Good	Good	Good	Good	4400	80.0
February 2004	Good	Good	Good	Good	4970	80.0
March 2002	Good	Good	Good	Good	5100	80.0
March 2000	Good	Good	Excellent	Good	4150	80.0
February 1998	Good	Good	Excellent	Good	4000	80.0
January 1996	Fair	Satisfactory	Excellent	Good	1750	80.0
February 1994	Good	Good	Good	Good	3870	80.0
March 1992	Good	Very Good	Very Good	Very Good	3850	80.0
April 1990	Good	Very Good	Very Good	Very Good	3850	80.0

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
Steel Girder/Beam	linear ft.	700	700	0	0	0
Steel Protective Coating	sq. ft.	9,849	9,849	0	0	0
Deck
Reinforced Concrete Deck	sq. ft.	7,085	6,685	400	0	0
Wearing Surfaces	sq. ft.	5,450	5,450	0	0	0
Substructure
Reinforced Concrete Abutment	linear ft.	172	160	12	0	0
Joints
Compression Joint	linear ft.	88	0	88	0	0
Bearings
Elastomeric Bearing	each	14	0	13	1	0
Bridge Rail
Reinforced Concrete Bridge Rail	linear ft.	215	195	20	0	0

© 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/1620715