US Bridges

Secrist RD over Big Creek

Good

Linn County, Iowa · 083050605 · Structure no. 000000000220541

Built
2005
20 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete Continuous
Length
153 ft
4 main spans
Daily traffic
1,660
2022 count
Owner
County
County Highway Agency

About this bridge

Secrist RD over Big Creek is a concrete continuous slab carrying Secrist RD over Big Creek in Linn County, Iowa. It was built in 2005, so it is 20 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 1,660 vehicles a day, roughly 10% of them trucks, projected to reach 1,660 by 2044. The structure is 153 ft (46.6 m) long and 38 ft wide.

CarriesSecrist RD
CrossesBig Creek
Location083050605
RouteCounty Highway 0
StateIowa
Coordinates42.02078, -91.47862
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 inspectionSeptember 2024
Inspection intervalevery 24 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating66.5 US tons
Inventory rating51.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length153 ft (46.6 m)
Longest span42 ft (12.8 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,660 (2022)
Projected traffic1,660 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Secrist RD over Big Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is Secrist RD over Big 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 2024.

How much traffic does Secrist RD over Big Creek carry?

About 1,660 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Secrist RD over Big Creek?

The structure is 153 ft (46.6 m) long with a longest span of 42 ft (12.8 m) and a deck 38 ft wide.

Who owns Secrist RD over Big Creek?

It is owned by the County Highway Agency.