US Bridges

Irr/Township Road over Logan Creek

PoorPosted for load

Thurston County, Nebraska · 2S 1.5W of Thurston · Structure no. C008702015

Built
1915
110 years old, rebuilt 1990
Condition
Poor
inspected October 2023
Type
Truss - Thru
Steel
Length
198 ft
1 main span
Daily traffic
45
2011 count
Owner
County
County Highway Agency

About this bridge

Irr/Township Road over Logan Creek is a steel truss - thru carrying Irr/Township Road over Logan Creek in Thurston County, Nebraska. It was built in 1915 and reconstructed in 1990, so it is 110 years old, older than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 45 vehicles a day, projected to reach 52 by 2033. The structure is 198 ft (60.4 m) long and 16 ft wide. If it were closed, the detour would be 43.5 mi (70 km).

CarriesIrr/Township Road
CrossesLogan Creek
Location2S 1.5W of Thurston
RouteCounty Highway 20
Coordinates42.1484, -96.7364
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating12.1 US tons
Inventory rating6.6 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+2 approach)
Design loadUnknown
Structure length198 ft (60.4 m)
Longest span120 ft (36.6 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deck13 ft (3.8 m)

Traffic and service

Average daily traffic45 (2011)
Projected traffic52 by 2033
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed43.5 mi (70 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Irr/Township Road over Logan Creek built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1990.

What condition is Irr/Township Road over Logan Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does Irr/Township Road over Logan Creek carry?

About 45 vehicles per day (2011 count).

How long is Irr/Township Road over Logan Creek?

The structure is 198 ft (60.4 m) long with a longest span of 120 ft (36.6 m) and a deck 16 ft wide.

Who owns Irr/Township Road over Logan Creek?

It is owned by the County Highway Agency.