US Bridges

N Main ST over Drainage

Fair

Fayette County, Iowa · 000000000 · Structure no. 000000000004801

Built
1998
27 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
599
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

N Main ST over Drainage is a concrete continuous culvert carrying N Main ST over Drainage in Fayette County, Iowa. It was built in 1998, so it is 27 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 599 vehicles a day, roughly 7% of them trucks, projected to reach 599 by 2043. The structure is 29 ft (8.8 m) long.

CarriesN Main ST
CrossesDrainage
Location000000000
RouteCity Street 0
StateIowa
Coordinates42.85189, -91.80745
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38.6 US tons
Inventory rating29.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadOther
Structure length29 ft (8.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic599 (2022)
Projected traffic599 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N Main ST over Drainage built?

It was built in 1998, making it 27 years old in 2025.

What condition is N Main ST over Drainage in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does N Main ST over Drainage carry?

About 599 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is N Main ST over Drainage?

The structure is 29 ft (8.8 m) long with a longest span of 10 ft (3 m).

Who owns N Main ST over Drainage?

It is owned by the City or Municipal Highway Agency and maintained by the County Highway Agency.