US Bridges

Mann Road over Creek

Good

Lincoln County, Washington · 2.30 E FAS G221 · Structure no. 080636000000000

Built
1900
125 years old, rebuilt 1987
Condition
Good
inspected January 2024
Type
Culvert
Steel
Length
27 ft
2 main spans
Daily traffic
39
2020 count
Owner
County
County Highway Agency

About this bridge

Mann Road over Creek is a steel culvert carrying Mann Road over Creek in Lincoln County, Washington. It was built in 1900 and reconstructed in 1987, so it is 125 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 39 vehicles a day, roughly 58% of them trucks, projected to reach 44 by 2044. The structure is 27 ft (8.2 m) long and 38 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesMann Road
CrossesCreek
Location2.30 E FAS G221
RouteCounty Highway 92200
Coordinates47.33419, -118.19861
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106.8 US tons
Inventory rating106.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span11 ft (3.4 m)
Deck width38 ft (11.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39 (2020)
Projected traffic44 by 2044
Trucks58%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$1.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mann Road over Creek built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1987.

What condition is Mann Road over Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does Mann Road over Creek carry?

About 39 vehicles per day (2020 count), of which roughly 58% are trucks.

How long is Mann Road over Creek?

The structure is 27 ft (8.2 m) long with a longest span of 11 ft (3.4 m) and a deck 38 ft wide.

Who owns Mann Road over Creek?

It is owned by the County Highway Agency.