US Bridges

Lilac Ave over Stream

Good

Davis County, Iowa · 069140104 · Structure no. 000000000134661

Built
2011
14 years old
Condition
Good
inspected May 2022
Type
Slab
Concrete Continuous
Length
113 ft
3 main spans
Daily traffic
70
2022 count
Owner
County
County Highway Agency

About this bridge

Lilac Ave over Stream is a concrete continuous slab carrying Lilac Ave over Stream in Davis County, Iowa. It was built in 2011, so it is 14 years old, younger than the Iowa average of 45.5 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 70 vehicles a day, projected to reach 70 by 2043. The structure is 113 ft (34.4 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesLilac Ave
CrossesStream
Location069140104
RouteCounty Highway 0
CountyDavis County
StateIowa
Coordinates40.80152, -92.41924
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length113 ft (34.4 m)
Longest span43 ft (13.1 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2022)
Projected traffic70 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lilac Ave over Stream built?

It was built in 2011, making it 14 years old in 2025.

What condition is Lilac Ave over Stream 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 May 2022.

How much traffic does Lilac Ave over Stream carry?

About 70 vehicles per day (2022 count).

How long is Lilac Ave over Stream?

The structure is 113 ft (34.4 m) long with a longest span of 43 ft (13.1 m) and a deck 27 ft wide.

Who owns Lilac Ave over Stream?

It is owned by the County Highway Agency.