US Bridges

First ST over Deer Creek

Good

Tama County, Iowa · 084161404 · Structure no. 000000000005441

Built
1996
29 years old
Condition
Good
inspected September 2022
Type
Slab
Concrete Continuous
Length
135 ft
3 main spans
Daily traffic
689
2022 count
Owner
County
County Highway Agency

About this bridge

First ST over Deer Creek is a concrete continuous slab carrying First ST over Deer Creek in Tama County, Iowa. It was built in 1996, so it is 29 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 689 vehicles a day, roughly 7% of them trucks, projected to reach 689 by 2043. The structure is 135 ft (41.1 m) long and 31 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesFirst ST
CrossesDeer Creek
Location084161404
RouteCity Street 0
StateIowa
Coordinates42.09122, -92.67922
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating91.4 US tons
Inventory rating54.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length135 ft (41.1 m)
Longest span53 ft (16.2 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic689 (2022)
Projected traffic689 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 First ST over Deer Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is First ST over Deer 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 September 2022.

How much traffic does First ST over Deer Creek carry?

About 689 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is First ST over Deer Creek?

The structure is 135 ft (41.1 m) long with a longest span of 53 ft (16.2 m) and a deck 31 ft wide.

Who owns First ST over Deer Creek?

It is owned by the County Highway Agency.