US Bridges

T16 (clay Ave) over Boylan Creek

Good

Butler County, Iowa · 092180404 · Structure no. 000000000088891

Built
2012
13 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete Continuous
Length
120 ft
3 main spans
Daily traffic
393
2022 count
Owner
County
County Highway Agency

About this bridge

T16 (clay Ave) over Boylan Creek is a concrete continuous slab carrying T16 (clay Ave) over Boylan Creek in Butler County, Iowa. It was built in 2012, so it is 13 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 393 vehicles a day, roughly 22% of them trucks, projected to reach 393 by 2044. The structure is 120 ft (36.6 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesT16 (clay Ave)
CrossesBoylan Creek
Location092180404
RouteCounty Highway 0
CountyButler County
StateIowa
Coordinates42.80933, -92.97582
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating45.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length120 ft (36.6 m)
Longest span47 ft (14.3 m)
Deck width33 ft (10 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic393 (2022)
Projected traffic393 by 2044
Trucks22%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$400,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T16 (clay Ave) over Boylan Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is T16 (clay Ave) over Boylan 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 April 2024.

How much traffic does T16 (clay Ave) over Boylan Creek carry?

About 393 vehicles per day (2022 count), of which roughly 22% are trucks.

How long is T16 (clay Ave) over Boylan Creek?

The structure is 120 ft (36.6 m) long with a longest span of 47 ft (14.3 m) and a deck 33 ft wide.

Who owns T16 (clay Ave) over Boylan Creek?

It is owned by the County Highway Agency.